Maru has been really friendly with me, she gave me really good advices and she was taking care during all my stay.
About the house, it's really big and comfortable. It has everything I needed for my stay. The neighbourhood was so quite, there we no noises in the night or stuff like that and it was really close to the underground.
I will definitely contact Maru next time I come to Berlin and I will suggest this house to my friends.