My family was disappointed with this hotel, and we would not stay here again. To summarize:
-Although it appeared clean, there was an overpowering stench of stale urine when we opened the bathroom door in our room. It was disgusting to the point of making me feel sick. We called down to the front desk and asked for a room change due to the horrible odor in the bathroom. They did change our room, and fortunately the bathroom in second room we moved to smelled OK.
-However, we later had issues in our second room as well; the air conditioner would randomly turn off in the middle of the night. Our stay was in August when Tokyo is extremely hot and humid 24 hours a day. We woke up several times during the night covered in sweat. During the first night, I had to get up to turn on the air conditioner again 5 times after it randomly went off! I mentioned the issue to the front desk the following day, and the staff simply said, "I'm very sorry" and offered no solution. We experienced the exact same problem during the second night of our stay.
-The room was ridiculously small. I know this is common in Tokyo hotels, but even so, the room was far too tiny for a family of three.
-It was noisy. There seemed to be no soundproofing as we could hear people walking and talking in the hallways at all hours.
During the two nights we stayed here, I barely slept. Overall, this hotel does not deserve the positive reviews it currently has. We would definitely not stay here again.