Really? I just hopped on public transport, and could visit any friend within 20 minutes. Or just suit up and go on a hike. Or maybe take a walk in the exceedingly beautiful city. I never understood this complaint from the naysayers.

Having lived in both places for several years (first couple of years are never a good gauge due to taxes, relocation, visa, acclimatization, bias), I very much prefer the quality of life in Europe. At least California pays well enough to offset the forest smog I guess.

And yes convenient access to other European countries is also a big plus.