We had a great trip to Tokyo and using airbnb made it even better. My husband, son and I stayed in Yuka's place and thought the location was great. It was very close to the metro. The apartment was very clean. It was very easy to get to the apartment from Narita airport thanks to the great directions and welcome packet Yuka provided. We had access to help 24/7 if we needed through the management company (called Zens) Yuka uses.
Overall, it was a good place to stay. There were two drawbacks I think should be mentioned. The apartment is right next to the freeway and you can hear the traffic at all hours of the day and night. My husband and son adjusted to it but I never did. I was awakened during the night due to the noise from the traffic. Also, it is possible to sleep three people in the apartment which we did, but I think it would be best if you just planned on two people. It was very cramped for us with three people. (We did have a lot of luggage and since space was limited to begin with.)