This place is located right in the middle of Korean town in Shinjuku. Great location, around 10min walk from the closest train station at Shin-obuko station. Just note that this station can get a bit busy and does not have escalator or elevator so it was a bit of hassle for us to move luggages and prams up and down the stairs.
The accommodation was clean and tidy with two toilets and showers. Note that there are quite a bit of stairs, but it was good exercise.
Overall we enjoy the stay and would recommend to others.