I stayed here in late July 2019. I was travelling by myself and looking for a hotel close to Ueno Station where I could spend the night. I booked a standard single room through the hotel's website about a week before arriving in Ueno. The room fit my needs perfectly; it was a simple, clean, small room with a bathroom, air conditioner, and small refrigerator. As I was only spending one night there and was outside most of the day, I really only needed a place to set my things down and take a shower. My only complaint is that the room smelled faintly of cigarettes; if you have a sensitivity to cigarette smoke, I would tell reception.
In terms of service, all of the staff I interacted with were kind and patient. I talked with two people at reception and both were able to help me in English. I also made a mistake with the room and they were very accommodating. All in all I had a very pleasant stay.