We stayed 2 nights with a group of 4 people. The apartment had more space than expected. The bed in the living room was already made, but there was still enough space to use it as a living room. The staff was very friendly. It's a bit outside of the citycenter, but by taxi/car it will take you no more than 20 minutes to go to the Brandenburger Tor. So the distance was no problem. The neighborhood itself was quiet, safe and relaxed but not a place to go out for a drink (because there are no or little bars and restaurants). I would recommend to stay here, it's real value for money.