Positives: lots of amenities, enough bathrooms, lots of bedding, Yurie was very responsive.
Negatives: On the day of our arrival we were told we would be charged a fine of 30000 Yen if neighbors complained of noise. There was a lot of dust under the beds. One of the heaters on the third floor didn't work so it was quite cold. Fortunately there was another heater that worked and we could close off that room to keep warm. If we were a bigger party people sleeping in the other room, it would have been an issue. The train ran throughout the night right outside but it wasn't too much of an issue for us.