Practically everything is good or great here. Locaton, cleanliness, communicaton, sleep (beds, silence, blackout curtains).
My only real complaint, and it feels strange saying it, is the ridiculous situation with the keys. There are too many doors, first of all. But the first, which you have to unlock AND RELOCK every time you come or go, has a broken lock. It's incredibly hard to use and one time it didn't work at all, the key just rotated endlessly. So it took us 5 extra minutes to get out of the building. For a day or two this is a minor annoyance but for a week stay it's a major problem and for any length of time it's a horrible safety issue.
The building has to relace it so it's not the fault of the hosts but if i were old or impatient it would be reason enough not to stay here.