What's not to like about seafood in a bag mixed with flavourful sauce? I believe this concept originated on the west coast and finally made its way to Toronto a while back. I've tried two of the Captain's Boil locations and had similar experiences in each. Be prepared to wait a while (unless the hype has died down by now...) - I think the longest I've waited was almost an hour before finally being seated, sigh.
I would recommend getting the shrimp and clams for the most flavour. I've tried the crawfish and the king crab legs as well but for the price you really don't get that much meat. Also recommend the Captain's Boil sauce for everything, which is basically a mix of all of the other sauces! The side of corn is pretty good as it's soaked in the sauce and the cajun fries are decent.
3 stars mostly because it still doesn't compare to the one I had in LA, and for what you're getting it is slightly overpriced.