Werner was a really nice host! He gave the warmest welcome possible, and tried to help making our stay in Berlin better.
The apartment is perfectly located (5 min walking + 5 min train you are in Alexanderplatz) and really suitable for 8 people, with all you can need. Actually, the only thing we really missed in the apartment was a microwave. Hope he 'fix this issue' soon :)
I would totally encourage anybody who is travelling with a group of 6-8 people to choose this apartment, it is really beautiful and comfortable!