Impressive. Excellent services, room is clean, size is just for Japanese standard.
Two recommendations (not complaint),
1. Adding smoking room on first floor or roof top will be better. The room on twelve floor is too small and improper located as it share with two restaurants.
2. Coin laundry is need especially if travel in continue mode (My trip was Fukuoka-Tokyo-Niigata-Akita (In city and at Odate)-Tokyo) therefore laundry is necessary as
laundry services is not match with my itinerary time. Compare to Hotel Sunroute which has coin laundry in the hotel or shop nearby.
Conclusion is The ANA will be my first choice on next trip.