The flat is perfect for 4 persons - our two children were in the living room (two single beds) and the parents downstairs (double bed).
The kitchen is small but perfectly equipped with everything you need (even coffee and tea!), just outside the kitchen there is a small table with 4 chairs, the bathroom had towels and was perfectly clean.
2 Supermarkets nearby, and within walking distance to Oranienburger Straße or Alexanderplatz- nothing left to ask for.
Besides, check-in was the easiest thing ever (lockbox for the keys), and also communication was perfect - Martin answers instantly :)
Highly recommended host - Thanks again!