We stayed at Matt's apartment for two nights. It is in a good location, with quick and easy access into the major tourist spots via the tram. It is clean and functional, with the living room, kitchen and bathroom located downstairs. The bedroom and a balcony are on the upper level.
The apartment is spacious and has good natural light. Matt was helpful and a good communicator, meeting us during the day. He also let us keep our bags there until the early afternoon on the day we left. His guide to Prague is also very helpful!