Klaus' apartment has been a perfect location for a solo weekend stay in Berlin - superb location (only 2 stops from Potsdamerplatz), safe neighbourhood and more importantly, a very comfortable apartment. Klaus has kept the place very clean and nice, the room is well decorated with pretty much all you need for a short city break. He has been very flexible and accommodating on check-in and check-out, generally hassle-free! Would totally recommend this place!