As a local, I have to do a public service and tell people to stay away from this area. It's horrible. If you want bad food, scenesters of all ages, over crowded bars\restaurants, then by all means go. Other than that, this area is junk. Sure you have some savings spots, like below St-Catherine you can find a couple of fun pubs such as Hurley's and Brutopia, you can actually have a good meal if you go to Devi, and the best shish-taouk (Chicken Shawarma) in the city. Don't believe me? Maybe you'll believe the picture of the owner and Prime Minister Trudeau.
Instead of wasting time here, go to old montreal, Quartier Latin, Plateau, Mile End, anything but Crescent.