This apartment is a clean and very modern. It's in the middle of a living neighbourhood, so you do get a chance to just seeing the locals in their everyday stuff. Not a long walk to a mall and very easy tranportation with the tram to the station, where you can take the train to airport or to more central Berlin to see tourist stuff.
It is located next to the main (and common) entrance to the house (the apartment has a private entrance) and the door slammed a little hard when used. Of course this is just a part of being in a living neighborhood, and didn't bother us to much.
We were out of the apartment early each morning and came in late night every night. And because of the private entrance it was perfect for us.
The online communication was great.