Michael communication is perfect; he explained to me how to go to the flat from the airport which was very easy. He welcomed me quite early in the morning which was very kind!
Michael's place is very well situated, super calm, very close to a u-bahn station (3 lines). There are also supermarkets and bakery nearby.
The flat looks larger than on the photo. It is well furnished.
The bed (couch) is ok for one person. There was wifi too. It is a good place for people who plan to visit, or to go to Berlin for professional purposes.