We really enjoyed our stay, the atmosphere of the flat and especially the room is nice and comfy, everything was bright and pretty clean (except for minor stuff like under the bed etc.). The stuff that was provided was practical (iron, hair dryer etc.), it would have been really nice if shampoo and handsoap could have been provided and if there would have been more sockets in the room, to be able to plug in the lamp for example, but otherwise you have everything you need. As other people have already said, it's a little bit noisy, but for us it was totally tolerable. The shared bathrooms were clean and each bathroom was only used by few guests, which was really nice.
The biggest inconvenience for us was that there is no possibility for luggage storage and even though Sabrina was very helpful and gave us tips, the luggage deposit took us quite some extra time. Sabrina responded quickly in general and was helpful, sometimes her answers were a little minimalistic and as there is no receptionist, you depend on her a lot. Maybe it would be less complicated with a less rigid self check-in-system, but in general it works out just fine. I recommend this place, and thanks to Sabrina for making everything work!