This is one of the most well known cities in the world, built to be beautiful. Well, as far as I know, living here is not different from living in any other big metropolis (traffic jams, stress, car crashes, noise, pickpocteting, fuss...) is typical daily bread here. But the architecture... is really impressive.
I believe that there is no other city in the world with so huge amount of famous and unique architecture gems like here: Eiffel Tower, Notre Dame, Triumphal Arch, Louvre, La Defense... and nearbby palace of Versailles. Paris is really worth visiting, but to live here? Not necessarily.