I have a special place in my heart for The Captain's Boil after the yelp elite event but I came here last week with some friends because of a Groupon deal.
The seafood is fresh, and the garlic sauce is YUM. So good that I saved the bag of sauce and used it to drench all other seafoods into it! I even used it to drizzle over the seafood fried rice, which I was super glad to find that it wasn't cajun/spicy (like it is as Captain's).
However, this location said they were out of lobster so as part of our Groupon, we were limited to ordering the crab. Also, after going home and doing some calculations, I found that the Groupon really doesn't save you much and in fact, reduces the flexibility of your order (have to get corn and garlic bread).
Overall, the food was still great and I'd say it's fairly comparable to Captain's Boil. Would come back on occasions (since seafood still isn't cheap after all)!