The apartment is very clean and well kept and is in a great location, and Olga's reccomendations were great. The only "bad" thing I can say is that the matress was very soft and I like hard matresses.
After an entire day of walking all around Prague, not getting a good night sleep because you're used to a firm bed was a bit of a bummer, but if you don't mind a soft matress, this is an excellent apartment.