There is mouse problem. Some residents put their garbage outside their room which makes the corridor very smelly since there is no housekeeping included in the routine bookings, you have to pay for cleaning on daily basis if necessary. Bring your own towels as well.
We really enjoyed our stay at the Kamui as a couple. We rented the one bedroom apartment condo with kitchen, the room is very spacious and we were able to relax in the living room after snowboarding. The condo is 2-3 mins drive to Annupuri and 15-20 mins to Hirafu. Will definitely come back again in the future!