ive been to LA many times and its a really nice place. Much nicer than say brooklyn. Ive never really noticed any pritzus that was worse than anywhere else. But if you are seriously thinking of moving you would have to take trip ot there with your wife to see what types of schools there are, where you would live and to feel the ambience.
About moving kids schools….. It really depends on the ages, but it is a rough change, so keep that in mind as well.