Alex and his friend David are really nice and helpful hosts. The flat has perfect location and good price! WiFi works great. But you should be ready for some moments:
There are 4 rooms (2 person in each room) in the flat and only one shower. It made us nervous when we had to go away early and we had to wait other people. Besides that the shower was not clean.
It is noisy - you can hear sounds of music from the street and you can hear everything that happens in the kitchen.
Because of the restaurants on the 1st floor there is a strange smell in the room.
The burner in the kitchen didn't work.
Well, the flat has pros and cons. it was like a hostel with separate rooms. We didn't expect to have to share the bathroom / toilet / kitchen with 8 people. May be it's just our problem, but it is good to know for other guests. Anyway it was not bad experience. It is a good place for 1 or 2 nights.