We had a great stay at the Peninsula Tokyo. It's conveniently located adjacent to the Imperial Palace grounds and near a Metro stop.
The rooms are fabulous and very comfortable. We stayed in a suite so that our family of 4 could stay in one room. We didn't want to leave!
We really enjoyed the amazing pool (shown in photo). Great views out the windows, beautiful blue water, water sheeting down one of the walls.
Great hotel for families or business!