My cell phone works fine in all sections of Coarsegold, I've tried because I'm looking for property there, and that's a big factor for me since I work from home.
Coarsegold is like an Artist Enclave: in fact a lot of artist live there; they have a big craft sale often in the parking lots.
For shopping, you can go up to Oakhurst, but there isn't a lot.
Or you can come down to Fresno. If you want COSTCO, LOWES, HOME DEPOT etc, you have to come down.
If I lived up there; I would have a lot of storage and an extra ref in the garage.
They have a small Hospital in Oakhurst, a nice one in Madera, but it's over on 99, and one off 41 in Fresno.
It's a compromise to live there, for sure.
Cell phones usually don't work, and there's always a fire danger. It would be a great place to set up a Paint Ball Park.
Good luck and may God bless