Overlake Transit Center

The overlake transit center is a pretty clean transit center. It’s right next to Microsoft, so if you have time to kill you could always walk around and look at Microsoft buildings. There’s an okay amount of parking spaces, but I don’t park at the OTC, but from my experience with transit center, go early to get a spot ;) Also, the 545 is usually very full before 10am I want to say.
Other than that, it’s convenient and a not so bad spot to wait for the bus. :D

Updated review:
So I spoke with SoundTransit, who owns the lot. Microsoft leases the space from them, they do not own it. They are aware that Microsoft Commute Services monopolizes the parking spaces, making it next to impossible for SoundTransit commuters to park at the SoundTransit Park and Ride. Yet they refuse to do anything about it.
Metro and SoundTransit wonder why they loose money and users. Maybe if services, such as park and rides, were available for users, and not overflow parking for Microsoft employees, I wouldn’t have such an issue voting down measures for Metro and SoundTransit.

Overlake Transit Center or really the Microsoft Transit Center is the main transportation hub on the Microsoft Redmond campus. Here you will find multiple sources of transport including King County Metro and Sound Transit buses.
As well as company shuttles like Microsoft Connector that drives FTE employees to and from home and Microsoft Shuttle vehicles that get you around the sprawling Redmond campus and satellite company building locations like Bravern in Downtown Bellevue.
If you are on the Main Campus, the location is convenient enough. Though it can be a bit of a drag if you work at one of the West campus buildings across 520. On weekends, the 545 to Seattle does not stop at the Overlake Transit Center so you need to cross the bridge to get to the stop that does. The location provides some minor inconvenience when you are trying to connect to a different bus.
There is also parking at OTC, but it does not seem too enticing because it seems like the lot is full. Microsoft employees don’t have much of a problem finding a parking spot, but this is problematic for a non-​MS commuter.
Overall, I think OTC is just okay. Good for Microsoft commuters and for those travelling to areas close-​by like Crossroads or on Sound Transit to and from Seattle. But I find it easier to connect at Bellevue Transit Center if you are trying to get around other parts of the Eastside.

Convenient stop to catch the 545 to Seattle, but it only stops by after noon. I guess there isn’t a lot of demand for morning commuters to catch the bus here, but it’s kind of a depressing walk across the highway on NE 40^th to catch the bus on the highway onramp in the morning. I would recommend catching the bus at NE 51^st street (still a 520 onramp, but somehow more pleasant with some trees and greenery around).
I use the park-​and-​ride lot often when taking the bus to Seattle. When you return, the bus stops right on the off-​ramp and it’s a short walk back to your car.

Pedal Dynamics is a fabulous store, With the Microsoft discount it becomes an awesome way to get your bicycle in order. Chad was helpful in giving advice and my 5,000 KM old bicycle came out looking brand new.

I like this Transit Center better than Bellevue Transit Center because it has a big parking lot. I can actually arrange a ride or pick-​up from here and wait at the parking lot. I don’t think you can do that with the Bellevue Transit Center.

I’m a fan! Great place to arrive on, or leave by bus, particularly if you work for Microsoft. Connections to different parts of the campus are easy to catch, and it’s easy to get into, whether you’re on foot, bike, or driving one of those four wheeled thingies.
It’s well landscaped, well signed, pleasant, and has bike lockers, a bike shop, and a fair amount of parking. My favorite bus, the 545 stops here…

The OTC is a glorified bus stop, so I feel odd giving it 5 stars.
It’s an excellent hub, plenty of lines run through it so you can get all around the greater Western-​Washington area conveniently.
There’s the MS shuttle-​office to pick up drinks if you’re Microsoft-​linked, the bike shop Pedal Dynamics, and there’s plenty of parking and bike lockers.
Improvements? Perhaps a small convenience store would be nice, but I don’t know where they’d put it.
Tip: On weekends not all of the same buses go through OTC, for example the 545 will stop on the other side of the 520.

I love stopping by here during the winter time. Everywhere is sheltered so no getting hit by the cold rain and whind when waiting for your next bus which comes in 23 min, says google maps. Its nice and cozy and also no weird people :)

As a before-​noon 545 rider, I rarely see the OTC proper. Well, I see it all the time, in the way akin to seeing Russia from Alaska, etc. It’s right across the street. I’m just standing on the 520 on-​ramp admiring from a distance. It’s there, it’s shiny, and there isn’t anybody begging for bus fare. It’s definitely 5 steps up from the Kirkland Transit Center [KTC with its tween gangster wannabes, that is]. I wish the 545 stopped here in the mornings :(
There are a lot of commuter buses — the type that runs to Microsoft in the morning, from Microsoft in the evening — that are here, but not much else, not to mention the Microsoft Connector, which has more buses stopping here than Metro and Sound Transit combined.
There are lots of benches, and a beautiful marsh. I love walking by it at night and listening to all the froggies and watching the baby bunnies in the spring time. Yeah, I said it, we’ve got baby bunnies. Be jealous, this is probably as pretty as you will find for a Park&Ride/Transit Center, anywhere.
I’m going to have to follow Adam W.‘s suggestion and make some Microsoft-​y friends, because in the wintertime, that warm little hut with all the happy people inside it makes me a little angsty at times.

Why suck in the fumes of stop-​and-​go 520 traffic at the on-​ramp bus stop when you can sit in well-​lit, rain-​protected luxury.
Yes, it did cost $ 11.1 million taxpayer dollars, but I think this is what we call a «sunk cost».
Oh, and there a Microsoft-​owned warming hut too, which has great coffee and hot cocoa. So make yourself a friend with a badge and grab something to drink :-)