I've been meaning to try this place for a while as I'm a big fan of poutine. I love the fact that they're open late. I don't think they're open late every night, but I went at about midnight on a Thursday and they were open.
The place is small with counter seating for about 8 people and an order counter. The menu is easy to read on the back wall. The only problem with it is that so many of the options look so good it might take a few minutes to make up your mind. As it was my first time at Smoke's, I decided to try the traditional poutine. My brother took longer to decide and eventually went with the nacho poutine. The guy working at the counter was cool, helpful, and patient even as my brother changed his mind a couple times.
My poutine was good but not great. The fries seemed a bit old, the gravy wasn't as delicious as my favourite spots in Montreal, and the cheese wasn't squeaky. It was however the most authentic poutine I've had in Toronto and I will definitely go back and perhaps up my star rating if the fries are fresher. My brother raved about his nacho poutine. He said it was a way better version of Taco Bell's "Fries Supreme".
As far as the sizes go, get the small one. Trust me. I ordered the bigger size as I generally have a fair sized appetite and I hardly put a dent in it.