The apartment is bigger and nicer than in the pictures. Newly furnished, very clean, lots of light, great terrace to spend hours drinking a cold glass of something and enjoying the nature. Very comfortable beds, fully equiped kitchen, and everything you need in the bathrooms.
The area is really nice and quiet, some good restaurants around, close to public transport. 2 supermarkets 1 minute away walking. Nothing more you can ask for!
The only downside was the arrangement for check in, we arrived really late in Berlin ( 12 AM), and the only way to pickup the key was at a 24/7 store in Alexanderplatz. Maybe for these exceptional cases Felix can find a better way to give the key.
But absolutely nothing to complain about the flat!