Olga's apartment is super beautiful! Very big, very comfortable furnished and enough space for everyone. We especially noticed that Olga has put a lot of emphasis on the fact that nobody freezes (extra blankets and extra heating) :) Everything was clean and there is even a dishwasher, which we were very happy about.
You should definitely read the document with the door codes carefully, we had some problems with that (especially that the second door is for pulling).
We would come back at any time.