Neighborhood is amazing, calm and homey. Lots of little restaurants around. Disadvantage of the location is that the nearest station is about 7 minutes on foot. From there to one of the more popular districts is at least 20 minutes by train usually with transfers.
The apartment itself (4th floor) was clean and nice designed but little too small for three people.
Contact with owners was pleasant, they answered every my message clearly, quickly and kindly. Same thing about check-in and check-out, easy and understandable.