A great location, right in the thick of Wenceslas Square. A little difficult to find it, and the access codes to the building and room are quite long, so make sure you keep it in your phone fir convenience.
Close to Museum Metro Station, with some decent restaurants nearby.
The room itself was clean, and comfortable. Kind of hot, with no aircon, you just have to rely on opening the window/balcony door. Be aware, there are no window screens in this country (at least that I've seen).
The shower area is separated by a glass barrier, with no door, which means that a lot of splash happens, and your bathroom will be quite wet afterwards. No bath matt either. Despite this small setback, I did enjoy my stay.