There is a hotel less than a minute's walk from the station, so it is very accessible. It takes about 20 minutes on foot from Shinjuku Station. It was bigger than I thought and I can open two suitcases. However, the bathroom is a little small, but there is no inconvenience. I could see some dust, but it was clean overall.
Women don't have hair conditioners, so I think you should pack them separately if you need them.
Overall, I was satisfied with the accommodation.