I lived in NYC for awhile and while it's car-free it's still pretty awful. You still have the same 30 minute commute -- there is no sense of geographic community. Unless you just refuse to make friends with people outside your neighborhood, every time you go out you're gonna end up on the train for who knows how long and-- oh wait, the cross-town is out of service and the train doesn't stop after 2am at blah blah blah. The stress level is easily on par with rush hour gridlock.