This appartment was perfect for a short stay for two persons. The place has a nice living room, but the rest is a bit cramped, i.e. bed room, bath room and kitchen. The kitchen is sufficiently equipped and suited for preparing simple meals if you want to do your cooking yourself.
The place was clean. We found a folder in the living room which contains all the necessary information in both German and English to get you started. Also a laminated map is present that contains the restaurants, super markets and public transport in the neighbourhood.
A nice touch was the book about the Berlin underground (in German) which inspired us to take the U-Bahn for all our travels, but there is a bus stop right in front of the appartment which takes you to the center of Berlin (Berlin mitte).
The appartment is about 7 to 9 kilometers from the main attractions that a first time visitor wants to visit in the center. I would recommend walking to the center at least once though.