Jan is a very friendly host. He gives you guides to visit Prague which include information about the main attractions, getting to the apartment and places to eat/drink. These guides are very useful, specially because they are made by a Czech, so they also have local knowledge. Jan provides everything you need, making your stay problem free. The apartment is very comfortable and has a great location, it's 1 min away from the Old Town Square.
Highly recommended, you won't regret it!