The apartment was perfect for our stay as it has two large bedrooms and we were two couples traveling. The location is really good. There's a tram stop a few steps away from the main door of the building and there are trams passing literally every 3 minutes. They take you to Alexanderplatz or another station to jump into an S or U Bahn very quickly. The overall communication was rather short but in a good way. The keys were in a small locker next to the place, everything was ready when we arrived and we had no problem whatsoever, so we didn't need to send any message. The place itself was very clean and had all the utensils we need for cooking. Also, the neighborhood is really nice. the street of the house is a big avenue and not necessarily remarkable, but turning at the corner brought us into a lively area with many bars and restaurants and a modern and chill atmosphere. As a downside, this may not be the best apartment if you're looking for a cozy sofa and a big tv (there's a small tv in one of the bedrooms), but if you're mostly interested on a nice apartment to explore the city, this is one we would definitely visit again.