Definitely not worth the money. The location is decent, but it’s not in the center of Shinjuku (20 min walk or take the metro), the place is tiny, and the bed was really uncomfortable. Even with the heater, the room was freezing cold because the place wasn’t well-insulated. When we turned the heater on, the bed downstairs was still so cold, especially because the bed was right next to the window, but upstairs was too stuffy. They advertise this place to accommodate up to 3 people, but there is no way three people can sleep here. The upstairs is max 3 ft tall, and you have to take a ladder up which is sketchy.
Definitely not coming back or recommending it to anyone.