I strongly recommend this place.
The house is great, we stayed there for 2 nights attending an expo in Berlin. The space was super clean and has nice aesthetics. Wifi was fast and reliable, which for me is really important since I am travelling for business and need to work remotely. The host was really helpful providing me in advance with all the details needed on how to locate and enter the apartment. Also for whoever wants to the kitchen has everything you need for cooking. The only thing I am not so sure about since I do not know Berlin, is the location. Because of the cold weather, we weren't able to wander around the neighborhood a lot but it seemed that not many restaurants, bars etc were around. I will consider this listing again if I am to revisit Berlin in the future.