Amazing value for money, 7 minutes away from Shinjuku area BY TRAIN from Nakai Station. Shinjuku Station is very big and serves a wide range of train and subway lines.
(Nakai > Takadanobaba > Shinjuku) was my usual route. Once you get to Shinjuku station, you can go anywhere !
Dorms were really lovely and clean, bed is comfortable, hot water for shower and bath, enough space for everybody but do recommend NOT bringing too much luggage because there isn't much storage space.
Hosts are lovely, welcoming and helpful. 1000% would recommend and would definitely come back!