Stayed for one night. We had an apartment (Bueno) on the 5th floor. (the one in the pictures).
The check-in was easy and quick - the receptionist spoke great English and the room was exactly as described and looked like the pictures. I would highly recommend it to anyone looking for a nice place for a good price.
I will consider staying again in any of my future visits to the city.
The location is a little out of the way of the center of Prague, but there is a public transport stop about 10 min from the apartment where a tram goes right to the center (Wenceslas Square).