I had a very comfortable stay at Kazu's property, and I think the size of the place was quite spacious for me since I was staying alone. The utilities that were provided were all complete and useful, and it was especially helpful with the English translation/guidance labels on the appliances and A/C remote controller.
The place itself is in a convenient location between 2 train stations: Kamata for the JR line and Hasunuma for the Tokyu lines, both of which I used. Kamata was a little farther in terms of walking distance, but Hasunuma was very close, so I went to this station more often. There are lots of supermarkets and convenience stores close by and within short walking distance, so this was useful when I needed to do grocery shopping. The neighbourhood itself is also quiet and felt very safe.
Kazu was also a very friendly, approachable, and helpful host. There were no problems with communication at all, and she replied very quickly to my messages since I was in urgent need of accommodation on short notice. Additionally, the wifi was abnormally unstable for 1-2 days, and Kazu came immediately and travelled a great distance after I informed her about the issue to deliver the pocket wifi device! I had no problems with wifi any other time, it was a very brief anomaly before it resumed to normal and the pocket wifi solution helped a lot.
Overall, I'm glad Kazu's place was available when I needed it and I would be happy to stay there again.