Great apartment, we enjoyed our stay very much! The apartment is on the first floor of a charming old building in a quiet neighborhood. There was hardly any street noise or noise from other apartments. It's close to the castle and other tourist sites on the left bank of Prague. As for the apartment itself, the kitchen, bathroom, and bedroom were perfect with everything we needed. Lots of closet and storage space. Everything was clean and nicely arranged.
A few things to keep in mind (these did not affect us, but might be useful to know for other travelers): (1) The apartment is not particularly close to public transportation; you have to walk about ten minutes uphill from the nearest tram stop. We're fit and were happy to walk though. (2) The few grocery stores in the area were expensive with poor selections so we ended up eating out most of the time. (3) There's very little natural sunlight in the living room and kitchen, but we hardly spent time there anyway.
Would be happy to stay at the apartment again!