We had a great time and the owner of Berlin Habitat Studio was VERY flexible. We only needed 2 nights instead of the usual 3 and the owner accommodated us. We arrived in Berlin first thing in the morning via an overnight train from Vienna and the owner kept our bags safely in his office before check-in while we quickly toured around our neighbourhood. Our location was great as we were a 10 minute walk from Kaiser’s Supermarket and very close to the Brunnenstraße/Rosenthaler Str. and Oranienburger Str. shopping areas.
We originally found their listing on VRBO but they have a nicely designed web site here: http://berlinhabitat.com/en/