A very convenient place to stay.
Close to JR Okubo Station (4mins walk) and JR Shin-Okubo Station (10mins walk) which is a Korean town in Tokyo as well.
The place is pretty clean, neat and fully furnished.
if you are considering the location you might want to stay here, but beware if you bring such big and many luggages since the place doesn't have elevator.
but Overall, i was pretty satisfied.