So, as you are about to check out, the host sends you an email to give them 5 stars and they will do the same for you. It is safe to assume that a lot of these positive reviews are inflated due to this reason. Isn't this against AirBnB terms of service?
Now, let me give you an honest review. This is a very old apartment so the bathtub and shower are together and not like most other apartments in Japan where they are separate. The issue with this, is that the bathtub is very tall, at least 2 feet so it is very difficult to step over and get into the bath tub, at least twice as tall as the bathtubs in U.S. Since the apartment is so old, when you enter a new room, you either have to step up, or step down, and it is not level like most other apartments that are less than 30 years old.
In terms of cleanliness, it says that the room is non-smoking but the room smelled like cigarettes and my wife actually found a used cigarette. I even bought air fresheners the first day since the smell was so bad. There were also little black bugs in the kitchen and body hair in the bath tub. We had to clean the room again since it was so dirty.
Another disappointment is the internet. The internet is a pocket WiFi where the other two AirBnBs I stayed both had fiber optic. So, definitely not recommended to stay here if you intend to work from home and if you want to stream TV like Netflix or Disney Plus. The range is also very weak and you pretty much have to take the pocket WiFi from room to room. It is better to have very fast internet at your apartment since you can always buy a data sim at Yodobashi or Bic Camera and now you don't have to carry and extra item nor do you have to worry about the battery life of the pocket WiFi.
The location is okay but not the best, about 10 minutes from asakusa station. It's also about a 11 minute walk to two good grocery stores, OK and Life. There is a grocery store closer called Maruetsu like 6 minutes away but it is overpriced and is low quality so you are better off walking an extra 5 minutes and going to Life or just go to a convenience store.
Lastly, there is literally no storage space. We were going to put our luggage in the enclosed patio but it was so dirty, we decided against it.
The beds are okay for now, but I felt like they are starting to show its wear.
So, I guess the people who would most benefit from staying are a young couple or a single person who plans to only use the room to sleep and do not really care about the cleanliness.
I hope that you find this review helpful. Thanks for reading, and good luck on your search for an AirBnB and have fun in Japan.