Location is spot on. Near Shinjuku but away from the hustle and bustle of the city. Nearby amenities are adequate. Good supermarkets. Although supper options are limited if you cannot read/communicate with the locals.
Rooms wise were great. I had a set of criteria required for my elderly folks and toddler and Yuka's home matched my many needs. Apartment is small as expected of Tokyo, but it is sufficient for my family of 6.
About the host - Yuka is absolutely fantastic. Responsive, eager to help, accommodating within her means, and communicates well in English. Befitting of a Superhost status. I would love to stay at her apartment again.