We had a great time in Prague. Jan is very responsive and very easy to reach. The apartment is in an old building which is a good thing as it has a lot of character but the house can do a small round of refurbishment. The bed wasn't the most comfortable as it made a lot of speaking noise.
The location is the best part as it is just next to the Old Town Square and everything is walkable, we did not use any sort of transportation throughout our stay.