Stayed for 2 months. It's a little removed from the city, but the immediate area has almost everything you'd need for daily life, and when you do want to get down to town, you get a 40 minute direct commute to Shinjuku - not at all too bad.
What's even better is you get great access to some of the key hiking train lines, making this a great base to hike mountains in Yamanashi, Saitama, Oku-tama and Kanagawa.
The neighbourhood is wonderful, with a prominent hillside temple that is spectacular especially in the fall, and a laid-back suburban atmosphere great for long walks.
The room itself is spartan but clean and functional. The proximity to the train tracks might make it a little difficult for light sleepers, but at least I had no problem adjusting to the noise.