The flat was just amazing in all ways possible! Super clean, modern, fresh and quiet. And the location was terrific, close to bars and shops. You would think there would be some noise from the streets but it was absolutely quiet, so no trouble sleeping. If you are thinking about staying in Prague, don't hesitate. This is the best place you can stay!
Pavel who checked us in was polite and helpful, and responded fast to every request we had. But boy, did we test his patience! After a night out, I embarrassingly realised we had locked ourselves out (I mixed up the keys to the flat with my brother's keys). I felt so stupid! Reluctantly, I called him (I think it was around 1:00 on a Saturday night), having no idea what reaction I would get. But, despite the awkwardness of the situation he was kind enough to come to the apartment letting us in, and managed to stay positive and friendly all the way. So hats off to Pavel, really! I don't expect getting top reviews after that stunt though :-)