The rooms are nice, the top-floor onsen fabulous. Staff was friendly and the location is in the heart of a busy, energetic area, close to the dotonburi.
Our biggest issue was that on arrival, our bathroom smelled terribly of urine. They sent cleaners but it remained terrible. We had to ask to be sent to another room, which was on a different floor from the rest of our group. The next day we did move back up again, but moving through three different rooms in 24 hours was less restful than we had hoped, and we would have preferred to have the situation resolved sooner. However, it was eventually resolved, and the rest of our stay was very enjoyable.
The only other thing is that while the lobby is fairly large, there are very few places to sit in it, and since the hotel also accommodates large groups, it was often filled with people and luggage and hard to maneuver.
However, we would stay here again for the onsen!