I stayed in the apartment of Irene and Josef for three full months together with a friend, as we were both studying in Prague for the semester. The apartment proved to be perfect for a long stay. The place is spacious, clean, well located in a quiet street of the nice and lively Žižkov-area and features everything that is necessary for a longer stay.
Communication with Josef was always friendly and efficient, and we never faced any problems during our time here. All things considered, I highly recommend the place for a stay in Prague!