Not recommended. I've stayed at ten different hotels over my 4 trips to Japan and this was the weirdest and worst by far. I'm not a picky traveler and the the physical conditions of the hotel were fine, but the service was horrible and uncharacteristic of Japan.
The staff/owner first made it seem like my arrival was inconveniencing him. He didn't allow me to use a credit card even though it's listed as accepting it and all the visa signs displayed at the front desk. Made me go get cash and treated me like he was doing me a favor.
He didn't give me the WiFi password and when I did finally go back ask for it, the wifi didn't work. It was out for a day and the other guests were complaining about it too.
The next day I couldn't leave the hotel in the morning (11am) as the front door was locked. I had to wait there until he finished his walk and unlocked it with a key and he made it seem again he was doing me a favor.
As I was checking out the day after and asking about possibly leaving a bag there for a couple of hours,all he cared about was getting the key back. And he refused to let me leave a bag there. Not a surprise really.
Mattress was flat from overuse, thin walls, lots of noise in the hallways, someone repeatedly peed all over the toilet seat. All of those were not a big deal to me, but the horrible service and locking me in makes me never want to come here again. 0/5 stars.