Even if I discount my positive experience at the "flagship" LET in Outremont, this place is overwhelmingly underwhelming. Though the decor is great, the Nun's Island LET just doesn't deliver on taste or service.
It took over an hour for our group to get drinks, and it's not like the place was crowded. The cocktails were inventive but were watered down. The appetizers were mediocre and the mains were not very impressive at all. I ordered the crab ravioli, which were imbalanced and had so much mayonnaise that I felt a little nausea. The cesar salad was nice, but I wouldn't order it over the pogos, which are the only thing worth ordering here besides the tartare. The steak is horribly mediocre and the fries were like limp greasy noodles.
Service was slow and not very polite. They waiter seemed annoyed with our group when we asked if he could move the position of one of the lights, which was beaming directly into the face of one of our guests (it was a misplaced light). Orders were mismanaged and placed in the wrong setting without any apologies. Lame. Also, we were seated outside directly under a boiling heat lamp. We felt like we were getting sunburns!
The only other thing worth ordering is the pouding chomeur. It was delicious and saved an otherwise disappointing dining experience.
That's it and that's all I have to say about this place. I would give it a 1.5/5 but the ambiance is pretty nice and there are a FEW hidden gems like the pogos, tartare, and poudding chomeur. I'll avoid coming back here.