Costs aside, it is undoubtedly a 'must go' location. A mature city beautifully enriched with culture, history, architecture, wines and a strangely attractive and stylish je ne sais quoi ...esprit de la vie, je pense?!
It helps that the 'natives' are generally friendly and respond positively to sincere attempts by invading foreigners to speak the local tongue (no matter how badly). Be a cosmopolitan city you'll find residents do speak English to varying degree of competency, so a hybrid French/English vocab can get you a long way.
Don't expecting good French cuisines at every corner. I've found really good french meals very hard to find in Paris and prices are steep. If your pallet is not too 'silver spooned' you can enjoy a sprawl of the usual Chinese, Mexican or Italian menus and US style grill houses. Regrettably you'll also find a certain well known fast food burger chain has has a foot hold at every main location. For a touch of high class cuisine in an relaxed setting you might consider the former mill and guinguette, now a restaurant - Moulin de la Galette situated to the rear of Sacre Coeur in Montmartre (phot0 top above)
We'll definitely pay Paris a short visit at the same time next year, perhaps for a short weekend to include a show at the Moulin Rouge and a meal at Moulin de la Galette. After which, its unlikely 'Mr plastic' could take much more.