I stayed for 4 nights in the apartment and loved our stay! The room is just as the pictures show, everything was clean and the room was lovely and warm. We were greeted by Max (and our late arrival was no problem) and he provided us with useful information. They even provided enough things for a simple breakfast (tea, coffee, toast). The bathroom was also clean. The area is quiet so we had no trouble sleeping. The apartment is also centrally located (about a 15 minute walk to old town square) but there is also a bus outside to Florenc Metro.
I would recommend staying here!