It's really hard to go wrong here. The choices can be a bit daunting because there's the option of building your own poutine. I opted to go with the "Poutineville" as it was the most popular dish (according to my waitress).
As a first time visitor, I appreciated the fact that I was walked through the different ordering choices and, most importantly, shown the dishes that a regular and large are served in. I opted for the regular which was more than enough, but I still finished it. The red wine sauce was phenomenal!