Maria was a great host! The checkin process was fast and easy and she quickly replied to all our emails. Apartment is just a hundred meters away from Brandenburg Gate and a few meters from subway station (Oranienburger Tor).
The apartment is quiet, warm and has everything you need for a comfortable stay. It is on a third floor without lift, not a problem for us but it is something to bare in mind.
I would definitely stay there again.