Mirjam was a great host. I've arrived about 5 mins before she had to go to work, and she was very patient in explaining me everything about her place.
She offered tea, and we had nice talks.
The room is big and includes also a dinner table.
The apartment is located in the center, about 10 mins walk from Kurfürstendamm. Also, there is a great organic bakery a few streets away (ask Mirjam), and a super place for sushi and pho, just on the corner in Mirjam's street. Even though it's a very quite restaurant, the food is cheap and super good!
So overall, I had a great stay at Mirjam's place.