It was really nice ! Julia is a wonderful host, the kindest we ever had. She was always there to help us and give us good advice. And beside her host-statut, she is a really nice person.
The room is big enough, and the flat is really cosy and well decorated. Although the neighborhood isn't really trendy, It is well located, near the historic center and the S-bahn and the u-bahn, very practical.
I definitely recommend Julia as a host !