We stayed at Philipp’s place for 2 nights in December. The apartment is very spacious and very well appointed. It is a great place with balconies on either side of the flat, It is on the 4th floor but with the lift that is not an issue.
We were unable to get access to the parking space but managed to get street parking which is free. It would of course have been easier with the parking space in the building.
All up I recommend Philipp’s place for visits to Berlin. It is one of the best abnb places I’ve stayed at.