Great movie? No way.
This is a nice little movie. It has its moments and pleasures for sure.
Slow paced. Amateurish is some ways (e.g. the cinematography).
I would not call it great. (I won't even get into the whole "best Canadian" movie thing.) But suffice it to say, I don't feel it's a great movie even if Ebert thinks it is.
I'd welcome anybody who wants to make the case.