I stayed three months at Andrew's place, while I was attending a training in Berlin. Andrew is a very responsive and serious host. He was always flexible, friendly and ready to go an extra mile to make me feel at home.
The apartment description was accurate. The location close to Nollendorfplatz is simply amazing in terms of offerings (restaurants, bars, groceries, etc.) and public transportation. The apartment is small but really convenient for a couple who plans to spend most of the time outside. The only downside is that it can get quite warm during the summer afternoons.
I highly recommend Andrew and his apartment for anyone who is planning to spend some months in Berlin or relocating to this city.