The apartment was really nice as in the photos. The neighborhood was quiet residential, with café and restaurants and no tourist. You can see the real Prague life. Try Café Jedna in the Galerie nearby, with friendly staff and good coffee.
You can take the tram to get to old town in less than 15 min.
The host answered fast every questions I had.
The handling of the keys and the 3 old doors was a bit difficult the first time, but that was the only small issue I had. I am not used to European old lock.