Martina is a wonderful host, very responsive and easy to communicate. she met us in person, gave us a lot of useful tips( restaurants, supermarkets, sightseeing).
Her apartment is very clean and tidy, and well-equipped, we had everything we need for making breakfast.
The apartment is in great location, easy to go anywhere with public transportation, a lot of nice restaurants and shops around.
If we ever come to Berlin, we definitely choose her flat again.