SoCal is the greatest place on the planet! I have spent 10+ years in the Corps out west. I am from PA and fell in love with Cali. Once my time is up on I&I Duty I will be headed back out that way. To retire!
I am a strange beast and I LOVE 29 Palms. I can honestly say that the SoCal Chapter is one of the best on. Once you get ready to move let, the SoCal boys know what you need and they will be there to help in any way they can.
Just like any other move its going to be what you make of it.
You will absolutely fall in love with the wheeling out there. As far as the people go I found everyone to be super friendly in SD, but I live in the DC area now. The SoCal Chapter will treat you right. Also look up SD4 Wheelers, they meet monthly at the Balboa park auto museum. Between

John