Idaho has stunningly beautiful areas. You will LOVE just jumping in the car and driving for a few minutes to explore the great mountains, streams, plains etc. It will take you less time to drive there than it does for you to drive to the grocery store in socal.
The air is cleaner by a long shot. You'll have NO traffic. There are some great courses there. Housing will be CHEAP. If you don't like snow, Winters will suck. If you ski or board, you'll love it.
You could drive a couple of hours and play 18 with me any time.
The mormons can be a pain sometimes because they want YOU to be like THEM very badly. They'll try to legislate your morals through what you can buy in the grocery store (cold beer, playboys etc). They'll knock on your door and offer you some free books and videos about their church and want you to make them dinner! But they are fairly harmless. Due to them, places where they are abundant have clean streets where you can walk anywhere at night without worry. You could leave your house unlocked and not worry about being ripped off. You'll have low crime.
It would be quite a change from lala land. I'd say you'd probably like it unless you're into going to the beach all the time.