We stayed at Nishi-Ogikubo for our third time, but first time with Live in Asia as hosts.
The apartment was nice and clean, close to the station and the supermarket Seiyu (open 24/7).
For the sound sensitive person you should know that the tracks are quite near the bedroom, but trains are not in traffic 24hours.
We spent 2 weeks there and was not disturbed, but it depends on your personal needs.
LiveInAsia seems to be an agency ans therefore they do this all the time and we can not complain on anything at all. Great information about both house ans surroundings was given by hosts.
Recommended!