This hotel is modern and very clean. The public bath is spacious and well maintained.
The standard rooms are (to a US traveler at least) a little small. There is no desk or place to use a computer conveniently nor any closet or luggage rack. That said, there is a built in upholstered seat which can double as a place to put your suitcase. There are a few hangers and a place to take of your shoes and wear the provided slippers.
The window blocks almost all street noise and it does open to provide fresh air. The heating was very powerful and easy to control.
Like many Japanese buildings, there are no 3-prong outlets in the rooms but the hallways did have 3 prong outlets. Bring an adapter if you'll be needing to charge a laptop, they don't have them on-site. There is a low power USB plug for a phone. Laundry is available in the changing room of the gender specific changing rooms for the bath. It is a combo washer/dryer and drying takes a long time.
The on-site parking is a parking robot thing with an attendant. It worked well and wasn't crazy expensive. Overall I just wish the room had someplace to work at a desk or at least some public space somewhere you could hang out. There are a few seats in the 2nd floor check in area but realistically you'll have the front desk people standing there a few feet away and there is no desk in there either. Overall, the hotel rooms and public space are good for bathing and sleeping. Not working, not eating food or socializing.