The hotel is very nice and clean and in a very nice position. The staff is very helpfull and always eager to help with any doubts or request. They provide you with a clean set of towels, pijama, slippers, and toothbrush/paste every day, which is really nice!
On the down side it is quite impractical since you can't bring your luggage upstairs near your capsule (there is no space for luggage upstairs). But my bed was on floor 8 and my luggage was on floor 2, which was not very convenient if I forgot something in my bags, and being there only 1 elevator and no stairs to be used in the building it could take a long time before I reached the right floors, due to traffic within the hotel.
Also, even if the lockers are quite big and can easily fit a big and a small lugguage, there is no space to open them without blocking other people from accessing their lockers. It is quite impractical if you have to reshuffle and organise your bags.
There is a nice common room upstairs on floor 9, and you could use it to organise your luggage, but it is not ideal, since other people are also using the space to eat/work/organise their trip.
Also, during my stay, aircon was very very cold on all floors, and especially on floor 9, which was sometimes freezing.