Keep in mind if you come here to follow Google maps. The building is a yellow orange building close to a street corner. It has an opening that looks like a parking space for a car. You have to walk inside to the end and to the left will be the entrance. This will hopefully help future guests.
As far as the spot goes, it is great for a single traveler. It has everything you need. You can even cook and have dishes and cutlery to use. Bed is okay, and bathroom is small but usable. It is also private and no one will bother you. If you need anything just contact the host. They were extremely helpful with me and helping me with any issue I have. So do not be afraid to ask the host if you need help. Very friendly as well.
Place is spotless. No dirt, no dust, no bugs...just clean all around. And quiet, if you want a good night sleep, this is the most quiet place you will find. Close to the local train station to Shinjuku and ikebukuro. Only 20 minutes by bus to Nakano Broadway. East to navigate around. And great restaurant everywhere. Try soba noodles, sushi, or the curry place close by. Several convinience stores, a pachinko parlor, and bakeries everywhere.
Overall worth the price and trip. Enjoy!