The place is clean and very close to 3 major train station: Nakai, Seibu-Shinjuku, and Ochiai.
It is also very near few convenient stores, so it's very easy to buy for breakfast or any thing you would need for your daily use.
The only downside is that the place is on the 3rd floor, so you would have to carry all your luggage up and down when you check in and check out from the unit.
Overall, it's a very nice place. I'd recommend the place to others.
Regards,
Steven