My wife and I had a great time staying at Vincent’s place. On the afternoon we checked in, Vincent was unable to be there to hand us the keys but had communicated clearly prior to that that his friend, Rachel, would let us in and show us around. She was very helpful and gave us some tips on where to eat.
We pretty much spent our 3 days in Prague walking everywhere as the sights are all quite accessible from this location. Old town square is under 10mins walk. There are two supermarkets nearby which is convenient. The room itself is nice and spacious with its own shower, microwave and kettle. The only thing was that the bed was a bit creaky, but nothing we couldn’t live with.