Alexander and Helga are lovely people. We had a very nice chat.
Apartment is execeptional. It is well located, 3-4 minutes away from S-bahn and U-bahn. There's a big mall, Alexa, 5 minutes walking. East Side Gallery is 10 minutes walking. Location is just what you need if you prefer walking to riding public transport or taxi. City center is very close.
Apartment itself is comfortable and cosy. It has all the neccessary things, even a fully functional coffee machine. If you like to cook by yourself, you can do this - there are pans and pots, knives and forks and everything else. Bathroom is as comfortable and nice lookig as everything else.
You would feel that it easly can be your new home :) We would like to stay there for much longer time, but our trip was short. When we'll be in Berlin for next time, we definetly will try to book it again!