First off, this location is a bit out of the way, if you intend to stay close to the downtown...you have to take the "Portliner" a few stops.
No issue for me, but did not realize this when I booked.
I chose it because of the onsen / sauna, and I was very satisfied: this was the best sauna / cold tub I had in Japan (so far).
Was hotter (and colder) than anything else. The actual hot-tub was good too, but I focus on sauna > cold tub cycles more than anything.
Rooms are new and look good, if not a bit small. As expected.
Stay for a night if you are on the fence...use the onsen...have a coffee-milk afterwards. You'll feel great.
Rooftoop bar / restaurant was nice as well and very friendly staff!