Opso

I love OpSo… Its amazing food they are serving and the waitets are super nice… Try the chickens with mashed potato super delicious

Had a bit of a Fawlty Towers experience here. On the plus side, the menu is inventive, décor is tasteful and quirky (marshmallows on ceiling twigs) and the food is truly beautifully presented.
The negatives were that the staff seemed fairly unbothered about our comfort. We were rushed out, even though our booking had been for 2 hours and they started changing tablecloths before we’d even asked for the bill. Some of the food tasted ‘interesting’ — no one enjoyed the mastic brioche but the jams in the breadbasket were lovely. (The £6 milkshake I got was nice, but rather underwhelming in size — around a 150ml mini-​glass…)
On the whole I think our gang had a nice time, as we giggled our way through the silliness, but I wouldn’t return I’m afraid.

Met a large group of (16) friends here for dinner and drinks. Someone had arranged a prix fixe menu for the group, and it was fantastic! Highly recommend this option with larger groups as it greatly simplifys splitting of the bill. The food was to die for and the price was surprisingly affordable given the quality of food and service. Cocktails were also amazing. A top recommendation for a great casual dinner in London!

Great modern Greek restaurant. Excellent service by the staff, and the food, especially the lamb, was delicious. Will definitely be going back!

Oh man, this place was delicious! If you are in the mood for lots of flavours or tapas I would highly recommend this place.
It was a Friday night and the place was busy, but we were seated inside, in the back. The service was excellent, the waiter walked us through what things were and gave us recommendations. I have to say that their spin on tomato, cucumber, and feta salad was AMAZING. I usually only eat it to get my veggies, but I felt like I wanted to inhale it all! We also had a warm cheese round (can’t remember what it was called) which was delicious and some sliders. YUMMY! We are only living in this area for a bit, but I will make the trek over here for Opso.
As someone said below, a great spot for drinks at the bar, or a wonderful romantic dinner. Great atmosphere!

Just love the place… Went there for brunch and it was just delicious!!! The portions are a bit small though but for brunch I guess it’s ok

Outstanding greek food! Across from another greek place, MAKE SURE YOU GO TO OPSO!!! Great food, order multiple dishes and share with the table. Anything on the menu is amazing. Try the salmon burger with squid ink bun.

Pleasant staff, good, no really good (maybe not amazing) food, nice environment. The Santorini fava beans were great, the sourdough delicious, and the garlic paste thingy the real surprise, much nicer than the ubiquitous hummus! As is often the case with a newly opened place service was a little too eager, but overall very pleasant. Would definitely return.

I went there with a friend after seeing a photo of the black bun fish burger on Time Out. I’m not a meat eater so anything with fish and exotic looking buns has my attention! I was expecting a full size burger but as we were sharing, the surprise of 2 smaller burgers was very welcome! I hadn’t realised this was a sharing concept before I got there… We also had the snails which were absolutely delicious! All the staff was really welcoming, helpful and knowledgeable, they paired our wine to our food AND our personal taste which was a nice and unusual custom touch.
I was pleasantly impressed by the decoration which was quite cool and modern. It was an early dinner so we could choose to sit by the window which was also quite nice.
Not sure how often I’d go back as I’m not always in the mood for a sharing menu when I go out for a meal but I’ll definitely go back!

Amazing Greek restaurant with outdoor seating! Small portions but meant for sharing! Everything (besides the coffee) is delicious.

Nice little spot to grab a cozy dinner with friends. Grab a booth downstairs (more intimate) or get drinks by the bar upstairs (louder). Restaurant gets bonus points for playing Lord of the Rings audio book in the bathrooms.
Food was tasty but not mind blowing. Favorites were the taramosalata dip, stewed chicken drumsticks, rib eye steak, semolina cream, and the warm chocolate cake.

Great food, loved the slow cooked chicken drumsticks. Quiet area and they have outdoor tables.

This place has a cool-​looking interior with a big communal table in the center, a bar in the front and small tables scattered around as well as a downstairs. The upstairs was buzzing on a Saturday eve and it invited us in.
We ordered a really good bottle of Greek wine which was a nice touch.
The service was pleasant and efficient although nothing to write home about.
The food was good although nothing amazing… the salad we ordered was just tomatoes and feta – something I make at home (and my version tastes better). The deep fried cheese was ordinary (and ours wasn’t oozing like the one in my fellow Unilocalers’ pics of this restaurant). The snails, bacon and chips was an overwhelming mess of lardons. The chocolate dessert just felt like batter in a bowl.
All in all it was an OK meal, but I won’t be rushing back.

DO NOT EAT HERE. It looks the goods but don’t be fooled. The food was decent but far from the bear Greek I’ve had. The service however, completely eroded any positive thoughts I had about the meal. You know those restaurants where you need to work really hard to get the waiters attention? This is one of those. At no point were we asked if we’d like to order anything or if the meal was ok. Which became an issue when our meals arrived before the wine (our second choice as they were out of our first) that we ordered at the same time. Our sides didn’t come until we were nearly finished out mains, so we went them back. It’s a nice looking place and they do seem to be trying hard, but the service really missed the mark.

Worst excuse for a «modern» Greek restaurant! The service and ambience are great — the food (and somehow even the wine) are just bland and terrible, with all the excitement of triple-​boiled cabbage. Greek food is meant to be flavorful — but its like someone took a vacuum device and sucked out every molecule of flavor from the food we ordered. Halfway through the meal, I wondered if I was coming down with a special flu which might be numbing my tastebuds. But my dinner companion (who is Greek) confirmed that even her salmon did not taste like salmon. It tasted like discount grocer generic whitefish.
I live in Marylebone, and have sampled every restaurant here (and love Greek food in general). This is by far the worst restaurant in the neighborhood (worse than the usual black spot chain abortions such as Strada, Pizza Express, Giraffe etc.). You will be better off crossing the street and ordering the sharing platter for two at The Real Greek — it is a third of the price with 1500% more flavor and 2000% more authenticity. I kid you not!
Check out the review in The Guardian.

Love this place for breakfast! Greek twist on breakfast foods. I had scrambled eggs with feta cheese and broiled cherry tomatoes on top of a large piece of toasted sourdough bread, so good. Their hollandaise sauce for the eggs Benedict is made with Greek yogurt, really good. Fresh orange juice as also nice. Wanted to Come back for dinner because their drinks looked great but never got the chance. Very nice staff and decorated very pretty. Great neighborhood location.

This review is based on a weekday BREAKFAST experience:
I arrived here early in the morning and was welcomed to delicious pastries on the counter. The interior of the restaurant is beautiful in its simplicity. The service was great and while the breakfast menu was not delicious the food was delicious. I was here with another person and so we decided to share three dishes. We got the scrambled eggs, which came on a sourdough bread with tomatoes and feta cheese; very tasty and delicious! We also had the Tsourki buns. This was definitely very interesting! It’s Mahlepi flavored brioche (reminded me of the taste of mastic) served in a bowl served with two spreads, the house made sour cherry jam ‘spoon sweet’, and a praline spread. We also had the walnut cake which is soaked in a honey syrup. Despite the description, the two dishes were not overwhelming or heavy; they were excellent. We also had the hot chocolate, which is amazing for those who love thick chocolate! Overall a great experience and delicious food!

We’ve been waiting for Opso to open in the neighbourhood. They have outdoor seating which is great because we have a dog and we tried them out for breakfast this weekend.
Food: We ordered the eggs and soldiers which the eggs were pretty standard, but the soldiers had cheese on them which made them different and delicious. We also ordered the pancakes which was actually just one pancake that had cream cheese, strawberry jam and berries (today were blueberries). I have to tell you that the pancake although just one was AMAZING! I am not sure what kind of batter they use, but it was delicious and I could’ve eaten 10 of them.
Drinks: We ordered three lattes.
Price: 22.95 GBP for two people. Definitely reasonable.
Ambiance: We sat outside which was really nice because the sun was out. Paddington Street isn’t too busy with foot traffic so you can eat in peace.
Service: Very attentive staff. Our server was not only friendly, but very nice.
Would I go back? Yes! Can’t wait to try out their lunch and dinner menus.