We loved our stay! For two couples we felt like we had plenty of room to hang out in communication areas and it was also lovely to each have our own bathroom.
The courtyard area was very nice and quiet- it was nice to have a table outside to enjoy meals.
We were able to easily get to the main Berlin sites- about a 45 minute walk to the Brandenburg Gate and also easy and quicker trains or taxi.
Many small grocers and a few large stores nearby so it was easy to buy anything we needed.
Would definitely stay again