We had in this apartment all we needed. 10/15 minutes from the U-Bahn station "Weberwiese", which leads directly to the city-centre. We have been a bit surprised by where the shower was (behind curtains in the kitchen), but it is actually not big deal because everything works well. We were three there, but it is totally possible to be four with the furniture there.
The price was also quite low, and we would enjoy to come back in this apartment if we come back to Berlin someday!