The hotel itself is fine. It is a room in one of the best locations in the city, but it is a bed, a toilet, and that is about it. I am not knocking it, but if you are looking to come to Tokyo on a budget, this is certainly a good option.
It is super close to the train station which is great, and right next door to a Blue Bottle which is nice. Again, this is a great place for a solo traveler, but I wouldn't recommend this for a couple or family.