i currently live in socal and i've noticed that there's a lot of young families in irvine especially. Their public schools are supposed to be awesome and it's a very safe area.
but, if i were to point out a negative on the place, i've just gotten a kind of snobbish vibe from a lot of the people there. It's not so much in your face as someone being outright rude, but it's definitely a very affluent environment, which boasts the fact that the inhabitants are very well off. I'm a bit biased i guess because i grew up in a blue collar town up north and i felt that being surrounded by people who didn't have it all taught me to be down to earth and thankful for the things that i did have. But like i said, its a personal bias.