VERY nice hotel in total.
A few small minor things to improve, so if they will fix it, I am sure they will get a perfect review, my review is almost perfect.
Rooms are nice size and generally very well cleaned. However, the floor in my bathroom was not cleaned too well...
Plenty of amenities, friendly staff, nice pool and very convenient area. They have a tuk-tuk anytime you want, to take you to the nearby station, 2 minutes, or a nice stroll of 7 minutes or so.
Shower head in room 612 did not work well, hope they will fix it, but it was fine for me.
Breakfast is a bit on the expensive side, in case it was not included in your room-rate, more expensive than most hotels in Tokyo, but very delicious.
Overall, probably one of the best deals you can find in town.