Nothing much to add here except, great food, great wine and great city to tour for its architecture and sightseeing!!
It's a really stressful town where people can be pretty rude (but don't put all the french people in the same baskets since Paris is another planet in France). Watch out on Boulevard La Pigalle in Montmartre, there's a Red Light district and you can hassle a lot to get in these place where they'll steal your money, litteraly!
In fact, this city is awesome, but you should go there in great company (aka, lover) and they say that in springtime, it's the best time to go! Hot and not crowdy cause during summertime, it gets a lot crowdy!
One last thing, if you ever go there, bring me back some red wines, it's cheap and taste like a "nectar divin".

