Andrea is a super nice host. Whenever i had some questions, issues or something else, she responded very fast and was always very helpful and polite.
The apartment itself was clean and had everything I needed for my 1 month stay. It's also close to Ōtsuka station, where you can hop on the Yamanote line and explore the center of Tokyo pretty conveniently. It also takes only around half an hour by foot to get to Ikebukuro, which is also a bigger part of Tokyo, where you can do a bunch of different things.
However I found the apartment itself a little bit dark because it's built close to other buildings, so there is not much daylight coming inside. But that's only a personal thing, for which neither the host nor the apartment itself is responsible. If you are okay with little daylight or are someone who travels during the day anyway, then I would definitely recommend this apartment for your stay.