Solárium Fitness BBC

Well placed, especially for people living by the metro A (green line). Right next to the entrance to metro (station Želivského).
Big advantage of this a place is its size. It´s really large with many rooms. There is the main room where most of the machines are. You will appreciate the big amount of machines especially in a rush hour. Than there is a room for box mainly (but also other fight sports). Another room just for exercise with dumbells. Another rooms are for aerobic and cycling. And so on. They have also tanning salon on the first floor.
There are TVs where you can unfortunately watch only Fitness BBC commercials and one czech sport channel. But let´s be honest. You don´t go there to watch TV, right? :-)On the other hand, there is also a place (in the main room) where they have projecting screen so you can watch a movie while running or walking on a running machines.
The small disadvantage is the fact that not all of the running or cycling machines work properly (usually display doesn´t show all the details properly). But otherwise everything is OK. Local people are usually very helpful and nice so that´s ok. There are many trainers who you can ask for advice or pay for training lessons.
The rush hour is usually in the morning between 7.30am and 8.30am and especially in the evening between 5.00pm and 8pm.
There is also something like kindergarten where you can let your kid play while you exercise.
I go to this gym for last four years and I think that four stars are appropriate evaluation.
BTW: Read the contract. There is one important thing to know. When your contract runs to the end and you wont let them know at least three months in advance that you wanna end your membership so the contract is automatically renewed for another season.