Rainer is a pleasure to deal with from beginning to end. He confirmed quickly, answered all my questions and he also let us drop our bags in before check in.
The apt is really well located only a short stroll from Alexanderplatz, a transport hub. The 100 bus also stops nearby, handy for all the popular sites.
The apt is basic but clean with very comfortable beds and a terrific shower.
There is a fridge etc but we went for coffee every morning to Oliv (recommended) and Spreegold (also good for coffee)
We ate in Madami 2 which was a lovely Vietnamese restaurant with a sister place around the corner. I would also recommend Lemke and Brauhaus Munchen for tray German food and beer. We also tried Thai Inside which was not good. The food was not tasty and seemed to be reheated. The staff are nice but the food is not.
The location of this apt is brilliant for the Museum Island- the Berlin cathedral and Pergamon Museum are worth a visit. Also nearby is Hackesher Hofe.
If you hop on the S Hahn at Hackesher Markt, you can easily get to Zoo station ava West Berlin.
This apt is terrific value, clean, well located and has a very friendly and helpful host.
I would stay here again if I come back to Berlin.