The room: I selected the Japanese style room for 1 person. At the time of booking, the only choice I have is smoking. It wasn't my preference, but it wasn't too bad. Japanese style room means sleeping on a futon instead of a bed. I like it as it gives me more space in the room, but if you prefer a soft bed or has trouble getting up from the floor, this might not be for you. For the same reason, there are no chairs in the room, so you have to sit on the floor.
The location: Very convenient, and the main reason I picked this hotel. It's 2 mins from the metro station and 3 mins from the train station (which are actually connected underground too). There is a train that takes you to and from Narita directly. It's right in the Ameyoko market, so while convenient, it can be noisy to some (but that doesn't bother me).
Restroom (toilet): My room does not come with its own bathroom, but each floor has a restroom with toilets but not bathing facility. On my floor, there were 2 urinals and 2 commodes (one "western" style and one "Japanese" style). I had not experienced any wait time.
Bathing Facility: There is only 1 bathing facility and it's a public bath. It's quite small though so practically you'll only be sharing the bath with 1 other person (instead of a big room full of guys). That doesn't bother me but I can see some might not be comfortable. The worst part is the hours: it only opens from 2p-10p.