Perfect to stay there when your arriving late in Japan or have an early morning Flight. Airport to hotel takes 15min by foot. 6am-21.45pm is a free shuttle service every 15 minutes.
Room is even a bit bigger than the average hotel-room in japans bigger citys. There's room under the bed for the Luggage, which I never had before, but wish other hotels would copy this.
Also when you already checked-in your luggage in the evening, you won't miss it. The hotel provides everything from Toothbrush, Pijama to conditioner etc...so you don't have to arrive even earlier in the morning at the airport to check in your luggage.
The hotel offers a japanese breakfast with lots to choose from. But when the breakfast time started at 6o'clock I could't grab/try it, since there where so many people waiting in line and my shuttle bus was at 6.15.
They offer no morning call, which I would love. 'Course you have your smartphone to wake you up, but you never know what happens and an second alarm insures you to surely get up.
All in all totally comfortabe and a recommendation.