We had a great time in Berlin, and the place was a key part in it.
The location is great with many coffee places within less a
than 3 minute walks (we tried a new one each day, and most of them were great and unique)
Transportation is also very good, with the Warschauer station, which is less than 10 minutes walk the one we used the most.
There are also some great attractions within a walking distance (East wall gallery, Computer Game Museum etc.)
The apartment is as described, it is a back apartment (HH) so it's very quiet and well equipped.
The second bedroom is very small, contains a bad and nothing else.
The living room is very big and so is the kitchen.
The place is filled with charm, and you just feel at home!