It's an interesting and unique experience, and a decent place if you're craving seafood. However, it may be a bit too pricey for what you get; depending on what seafood you end up choosing.
The mussels we had were probably the best value, they were big and a good price. Lobster however was not really worth it in my opinion. There are places you can get more lobster oomp for better value.
In terms of their sauces, their specialty, Captain's Boil is definitely the best choice. You can get the other ones if you want more variety.
keep in my mind, it's a messy experience regardless of what you get.