We had a great stay in a unique apartment with fantastic location in central Prague. Although we haven't met Ondrej, he arrange with his sweet neighbour all key collection and showing us the apartment. In the apartment here are many Prague guide books and maps, local food shop discount card + shopping bag ready, and downstairs is very nice cafe worth trying.
As well, Ondrej was very helpful with our addition request of leaving bags in the apartment and collecting them later.
The apartment is light, warm, homey with great beds and shower. As we were staying only one night and walking around Prague a lot we haven't used the apartment as much as we would like, so already planning to come back to Ondrej's apartment again with friends.