The room was fantastic.
The hot tub had its own floor above the room (might be rough for people with mobility issues) with a spiral staircase leading to it. The hot tub got to a great temperature and was amazing before and after a day of walking.
The hotel itself is very very close to the Nagasaki historical areas (peace park, a-bomg museum...) and in a very quiet and respectful area.
If you intend to look at the history, I highly recommend staying here.