Their wine selection is extensive (with obviously a lot of champagne/sparkling wine options). Wine prices in Montreal are higher than in the US so do expect to pay over 70$ for a bottle worth less than 20$ at the liquor store.
Food was actually more of the highlight than the wines (burrata, tuna escabeche, lobster & foies gras poutine). The quality is there and the portions are fairly large.
I would not call in fancy, though. It's a supper club. Go there if you're in your late 20's, not that picky on wines and are looking to celebrate some occasion.
I personally prefer places that have a more focused wine list (more private importations) and menu. But I would go back after 11PM to saber a bottle of champagne and have a little bit of fun.