The communication with Javier was great from the beginning and untill I left the flat. The flat itself is quit big and the 3 double-beds are all really good, and so were the pillows and the duvets.
The flat is in a very quiet part of town - you might call it boring, but we enjoyed the peace after a day in more lively parts of Berlin. The S-Bahn station is very close, so it was easy to come around. I can warmly recommend the nice and charming flat to othe visitors..... unless its people making a party in the evenings - that wont work, as there are people living under and beside this appartment.