I'm visiting Montreal this weekend with my two nephews (ages 12 and 13) and chose Nyk's based on proximity to our hotel and reviews, and were not disappointed! We shared a poutine and it was quite good. I had a little salad with balsamic dressing that was yummy, although a tad overdressed.
For my entree I had pasta with mushrooms in a cream sauce. It was amazing. My nephews loved it too and ate half of it! We also got a calamari to share. Not the greatest....
Service was fast and friendly, atmosphere was fun and inviting and fine with the kids. Really a great meal!