ACCOMMODATIONS:
There were four men with us on our trip and we comfortably were able to fit in this unit for over a week. Basically there are two single beds, one sofa-bed (double) and then a roll-away bed that can be found in the closet. The least comfortable bed was the roll-away, but that was expected.
The kitchen are, especially the fridge, enabled us to buy snacks and drinks from the convenience stores and consume them together around the small dining table.
We felt safe the entire time and didn't have to worry too much getting around as everything is easy to access via walking.
LOCATION:
It super close to the JR Shin-Okuba station. Not more than a 5 minute walk, which made getting around super easy. There is also another station on another rail line that is maybe 10 minutes walk (Okubo Station).
With regards to convenience, there is a large food selection as it is next to the Korean district and a number of FamilyMart & 7/11's.