The flat is an two room flat, you are living in my room and in the other one is my roommate living.
Also The flat is in the second floor and remains to an "old building" type (built in the 40s/50s). Even though you are in the center it is a quite place.
Neighborhood - you have every thing nearby (restaurants, small/big shops, barbers, fastfood shops and much more)
Also you have a super short way (1min) to the public transport which brings you in to almost all big places in Berlin in 8-15min.