Something that wasn’t noted was that the apartment is next to a constructing building which would cause some noise (knocking/drilling) in the morning if you’re unlucky.
Besides that, the location is rather peaceful and is accurately described.
The apartment is cozy. The bed is rather hard but thankfully I personally prefer harder beds.
If it concerns you, it takes about 20~ mins to walk from the apartment to Shinjuku station. And about 6 mins walk to the nearest station which is Hatsudai.
I would recommend this apartment for anyone with a lower end budget. It’s great value