Well smokign in France is a big no no and generally what you will find is ABSOLUTE crap.
Plus french food sucks ass(if you like tasty spicy food) and the city is just butt ugly , go to amsterdam instead , better food and you can smoke and it's prettier
If this is your opinion you must have the culture of a piece of wet tissue.
The food is excellent unless you are only eating at places with english menus and pictures of the food on display outside the restaurant. The city is probably the most beautiful in the world, even though I love my fair city, London.
It is very easy to find good quality moroccan hash in Paris as long as you are vaguely street wise, find an arab in his twenties and ask politely. Don't look for bud, you'll be dissapointed 9/10 times.