The location is excellent. The hotel is located in a shopping mall right next to Nagasaki train station and the bus stop for shuttle bus from the airport. A brief walk from the hotel is a stop for the number 1 and 3 trams which will take you to pretty much all the tourist locations in Nagasaki.
It would benefit from better signage, because finding the hotel is pretty difficult.
The room was nice, immaculately clean as (almost) always in Japan. The bed was a little bit too hard for my liking.
Staff were courteous, although it never ceases to amaze me how difficult it is to communicate in English in Japan, even with people working in the tourism industry. Several times we had to give up on, in my view, pretty straightforward questions. But at least we tried.
Breakfast is served in one of the restaurants inside the shopping mall. It was included in my reservation, but if you have to pay extra I'd say it's not worth it.