This was a nightmare booking. The location is noisy and is essentially the "slums" of Tokyo. Upon entering the apartment we were met with a noticeable smell, think of cheap cologne mixed with sweat. The entrance area was dirty and scuffed, the walls of the entire apartment had fatty stains as did the wooden blinds and "kitchen".
The shower was absolutely filthy and although the host did try clean this after we raised the issue, the smell persisted and the taps were still dirty. The bed was essentially two very soft (dirty and stained) mattresses stacked on top of each other - not something anyone can comfortably sleep on. There were old cigarette butts under the bed and what looked like vomit stains on the wall next to the bed.
The worst part of this booking was the discovery of a massive infestation of black mold above the entire bed area - this is a SERIOUS health risk and led us to cancel the booking - luckily Airbnb refunded the cost of the booking. Not recommended.