Shinya' apartment is in a good area of Takadanobaba - close to the station and lots of convenient shops. Pretty easy to find.
He is easy to message and usually gets back to you quickly. We spoke in Japanese, but he offered to try and speak English, which was kind. The internet is strong and easy to connect. The other amenities in the apartment seemed in working condition, but I didn't use anything besides the shower and heater.
However, the owner has a "leave it clean for the next person" policy, which doesn't work. The person before me left the place a mess. If I wanted to use something, I had to clean it first. Also, there was no information provided about where to find things like sheets, towels.. anything really. It isn't my apartment, and I don't like looking in places without permission, but I had to find everything myself. The bed (futon? Cushion?) wasn't made when I got there, so I had to find sheets. They were wadded up in the closet with a blanket. I hope they were clean. There wasn't a pillow case, so I put a hand towel over the pillow.
The worst; they left wet clothes in the washing machine which stank when I got there. I messaged Shinya immediately about everything (which Airbnb says to do) but he said there wasn't anything he could do about it. I spent over an hour cleaning the apartment my first morning because it was disgusting. I had a busy schedule during my stay (believe it or not, I'm not a house cleaner, I have a life, and plans, go figure) and after already cleaning so much, I wasn't about to deal with this dirty laundry that wasn't even mine, or my fault. Ridiculous. The owner charges a ¥1600 cleaning fee, but I don't know what for. He provides a lot of cleaning materials for you to clean his apartment with, though. Thanks.
The pipes are loud in the kitchen and bathroom. The shower water pressure is basically a drizzle. I used 7/11 shampoo.
I could have stayed in a decent business hotel for the same price I paid to clean someone else's apartment.