It's a cheap and small place, you get exactly what you pay for. The host is an absotely awesome person! Checking in is just by locker code.
It's also awesome that a Pocket WiFI is included, this makes traveling thru Japan easier and cheaper, since you do not have to rent an extra PocketWiFi.
Yep, it's true that it is in a questionable area, but again.. the add says it and it's exactly what you can expect.
The only complaint I have is that the room could be a little cleaner.