Daniel's flat surely was one of the best experiences I had on airbnb so far.
The location is great: not in the most troubled street, but nice pubs and restaurants are around and the main sights are just a 7-10 minutes walk away. It is also reachable from the main station in about 20 minutes.
The flat is spacious, you can easily fit three people in there, four would also be possible. The whole flat was absolutely clean.
The intérieur is puristes but has everything you need even for a longer stay. Just the wifi wasn't working correctly all the time.
Communciation and check-in worked great: quickly and flexible!
Daniel's flat would definitely be my first choice when coming back to beautiful Prague!