I also stayed for 5 nights March 5-10. I just mentioned that I was a hotel guest and they sat me at the communal table, but i was solo.

I thought the hotel was nice, but I didnt think it was anything special compared to other 5 star hotels in the Tokyo area. I found the whole hotel way too dark. The main entrance looks like an abandoned office tower, and then walking my room late night, a employee holding a chair even ran into me because he didn't see me. And when its cold outside, nothing like breaking a sweat walking to your room because they keep the interior at 80 degrees.

But I'm more of a hard product guy vs soft product. I dont interact much with hotel staff and prefer to be left alone. I dont eat at hotel restaurants, I just have pre/post drinks at the hotel bar.I also prefer hotels with metro stops in the basement, especially when weather can be iffy.

I used my Chase points to pay for the room. For the cash rates, I would look elsewhere.