I really enjoyed my stay at Oliver's. the room is simple and cozy ( and pretty warm as it was really cold in Berlin). it's an old fashioned building but it has its charm.
the apartment has all the strict amenities but as Oliver is really friendly and kind person that adds all to the place ( he made me coffee a few times after some big parties) and mostly he's of a great company.
in the neighbourhood you have anything you may need and there is also a very cozy pub around the corner.