I really liked the location of the flat. I could walk to bars and the main shpping streets and many other places and the metro station is also really close! I didn't meet Diana but her mother was really nice and showed me everything in the flat.
What I didn't like so much is that the floor was nicht really clean (probably because of the big dog) and it was really loud outside at night.
Also the check-in was not easy, I waited 40 minutes in front of the door because I didn't know which bell to ring (which I asked before I arrived) and Diana didn't answer her phone. But all in all I would come back for a weekend.