I think like every city it has good parts and bad parts. Food is great, lots of stuff to do, employment is ok, the city is generally superb. But the population is irascible, the metro is a dark, overcrowded, grafiti covered, piss-stinking place, and the city is one gigantic traffic jam. Health and education is cheap, though state-run schools are in free fall and parents rush to put their kids in private schools. And the city is surrounded with poor neighbourhoods that are a ticking timebomb (with regular riots that are now spreading inside Paris).