While The Big Cheese is no Smoke's Poutinerie in Quebec, it will do until my next visit out East.
I tried the Philly Cheesesteak. Overall, meh. The chips were good, but most of the flavour came from the caramelized onions, not the gravy. And it had roast beef on it, not actual steak as in a Philly. I would visit again, but probably wouldn't try anything with meat and mushrooms again.