Very spacious apartment about as close as you can be to Berlin's main attractions. It's sort of an East German Penthouse with views of the Fernsehturm and the Russian embassy. As with most of Germany, no AC or screens, so it can get hot, but you get a nice cross breeze going with the windows open. No frills, but a great deal for the price. You do have to deal with a rental office to sign additional papers, which was the only Airbnb we had to do that for, but it wasn't a big deal.
All in all a great place for a family to explore Berlin!