For sunny or weekend days, the lineups are very long, like 1 hour long to just ride the Titan., or 50 minute wait for dragon...etc. If you don't like to wait, go on colder, cloudy or rainy days during summer weekdays, the lineups are 5 minutes or non-existent.
Anyways this is the only real choice of amusement park in Montreal Area. Its got great selection of rides and roller coasters. Food average around $12 for a simple meal. SlingShot and cannonball rides cost $10 extra.
Also normal price of daily ticket is around $60, which is almost the same price as discounted season pass; better to just buy the pass if you plan to go at least 2 times or more.
October fright fest special attractions in costs $9 extra per entrance (eg. Maison Rouge, District 510, Massacre Museum ... etc.), not included in gate admission.