My family and i just stayed a week in the Hilton Tokyo in an executive king room it was very comfortable. The staff were very helpful, and would go above and beyond many places i have stayed in the past.
A few examples of this was i couldn't find an ATM that would except a my credit card to get cash out, one of the staff members walked me to a machine that would work and waited while I made the transaction. Another time we left the room in mess to get out as early as we could, one of the room cleaners picked up all my daughters stuffed toys sat them up neatly ready for her to play with. There were countless examples I could come up with, but i'm not much of a writer.
Basically the little things make a big difference when it comes to quality service and the Hilton Tokyo ticked all the boxes