The room is good with a nice balcony for you to enjoy the good view. The room is big enough for you to place your suitcase which is rare if you stay in hotels in Tokyo.
The only improvement is that as I stayed for nine days, it would be good if I could place my rubbish outside the common area of my room instead of having the rubbish to be collected after checking in.
In general, I will book the room again if I will visit Tokyo in future.