Excellent place to stay outside of central Tokyo. If it's your first trip to Japan, this might not be for you because getting from here to places like Akiba or Shinjuku takes a solid hour BUT if you have no problem commuting and returning to an absolutely incredible, relaxing neighbourhood in the evening - go for this!
Rei was very communicative and the place was very clean. There is a manual inside the room, there are English labels on a basically every appliance inside and it is also quite spacious. Easily able to open a full-sized suitcase in the bedroom and having a separated kitchen and bath is very nice.
The internet was fast, but a bit too unstable and would occasionally cut out for minutes at a time. This isn't a big deal if you are planning to spend your time outside much but still worth noting.
All in all I am sad I didn't book this place for more than a week, highly recommended if you want to escape the hustle and bustle of Tokyo.