Some owner knocked on our door, 10 minutes after we arrived telling us, rudely, to stay quiet from 22:00 until 07:00. I understand the house rules very well and general noise rules, and this was just extremely uncomfortable, especially for my party of friends who came to Prague to visit.
Shower didn't run off very well (blocked drain).
Smelled like someone smoked in the apartment when we arrived.
For the rest, apartment was as advertised on the pictures. Location wise the place was very easy to find and easy to get to places (nature of Prague).