Our stay at Tomas' place was great. The flat was clean and spacious and the beds were very comfortable. The location was quite central, only a couple of minutes walk to the National Museum and not much further for Old Town. Despite this centrality, the room itself was not noisy at all.
Tomas let us leave our luggage for a few hours on the last day, which was great and allowed us one last look round Prague. I would very much recommend staying here.