What a great place to stay! We were a group of four — the max capacity I’d stay at in this space — but managed well with room for all of our luggage. The place is exactly as advertised, and the left bed was comfier than we expected!
The building is ~5 minute walk from exit B1 of Higashi-Shinjuku station (Keio Marunochi line E), and is a ~15-20 minute walk to JR Shinjuku or JR Okubo. 7/11’s conveniently located around the area, and we recommend a cheap, cafeteria-style Japanese breakfast at Higashi-Shinjuku Shokudou!