We stayed in executive floor which is at the top of the building.
Great view indeed. Executive lounge offers a fairly good choice of snacks ranging from mini sandwich, sliced fruit, tea coffee to desserts. breakfast is even more generous.
On top of that, extremely helpful and attentive staffs with good English rarely found in Japan.
However, the one star deducted is because of undesirable room facilities. Despite staying in executive room, it is little different from ordinary rooms. No upscale feeling at all. Worse, too soft and narrow bed coupled with no alternative choice on firmer mattress, makes my sleep uncomfortable.
Clearly, the software part is much better than the hardware end. If the hotel is willing to upgrade its room facilities, no doubt it would be a solid five star.