The stay at room 401 was just as expected. The room was clean, easy to 'transform' to have 2 beds in there and the communication was absolutely fantastic! You'd require being a bit more on the experienced side of travellers to figure out which train stations around you make the most sense to go to but in our case that didnt pose any issue whatsoever. There's 3 convenience stores in very close proximity to the apartment, which also run 24/7 so even a midnight snack will always be possible. The bathroom is spacy enough, especially for Japanese standards. The couch was really comfy and cozy to sleep on too.
The only slight downside coming to mind is the lacking insulation of the building, meaning that it might get quite cold at night or during colder days. That can be fixed with a few blankets which you'll have enough of, provided from the living room closet. All in all we had a really pleasant stay at the apartment and would love to come again. Thank you so much for having us! :)