Robert & Pavel's place was super nice. Very central while still not being in the main touristy areas, with lots of great food nearby; and not being too far to walk home after a long night even after the night trams don't run anymore.
Communication was great; they gave us some great tips about nearby restaurants and things to do and were there super on-time. As there was no booking for the previous night, they even let us check in way earlier!
The place was also spotless and superb; the only negative thing I can even think about is it being in the top floor and therefore getting kind of hot - that fact is owed to the heat wave that happened while we visited though. It'd be fine on all but the hottest of days, and even then, there were fans in the apartment for cooling off!