We unfortunately ended up with a bad overall experience. The place was as advertised - a small double bed with a walkway around it as well as a desk and two chairs. It's a bit more space than cheaper places we've stayed at in a popular location in Tokyo. Toilet and shower were modern and comfortable.
A month prior to our stay, Bruce had confirmed they would be able to hold luggage after checking out. This was one of the main reasons we chose this listing. Upon checking in, the staff also confirmed once again that luggage hold would be possible. On our last night, I happened to mention one last time that we were going to check out and leave our luggage, to which Bruce surprised us saying it's no longer possible. Apparently they had an incident a few nights prior and stopped offering luggage hold services altogether. I guess this is why we can't have nice things :( In any case, Bruce didn't notify us first and we had no choice but to cancel our plans. Ended up losing out on a full day.