What about Sayoko’s place isn’t great? Her apartment is just 15 minutes from Osaki station (which is on the Yamanote line that covers all of central Tokyo like Shibuya, Harajuku, Shinjuku, Akihabara etc.). There are a lot of shops and restaurants in the same street and the Lawson (one of the many combini supermarkets) is literally 2 houses down the road. The neighborhood is nice and quiet and you don’t have the feeling that you’re in a big city like Tokyo even though Shibuya is only 11 minutes away. Sayoko is a great host as well. Responded very quick to my messages, we could check in earlier than expected, she gave us tips on where to eat and even brought us to the station with all of our luggage on our last day.
There was a minor problem with the upstairs neighbors, as they were making a lot of noise, but after sending Sayoko a message the noise stopped right away.
The only little thing I can think of is that we found the mattress of the bed a bit hard but that’s a matter of “taste” so I wouldn’t let that stop you from booking this apartment!
It’s also very easy to access the apartment from Narita since there is a bus from there directly to Osaki.
I would definitely come back here!