The flat itself was as described and communication with the hosts was great, but I can't just mention the flat without the area it's located in. Aperantly the flat is next to someone's storage and every day at 7am they take stuff out and put some other stuff in and this woke us up every morning.
The flat is located on a abandoned street where the building is the only one (or one of) that is with people. We saw several times junkies inject drugs right at the front gate of the building. During the night many junkies wonder the street yelling and doing junkie stuff. Very uncomfortable to walk at night at that street.