Crab shack on the grand

I am sure this has been asked a hundred times so what's one more. We are going on the Grand in June 0f 2018. I really want to do the crab shack dining venue but do not want to be disappointed. A couple of questions. We will be doing the 10 days to Alaska so how many times do they usually do the seafood dinner? Is it all you can eat or has that been paired back? and is it worth the experience? Thanks for any and all information.

It was offered twice on our 15 Day Hawaiian cruise on Star last week. We had a reservation for the second one but it was cancelled "For technical issues". :-(

We had the Crab Shack last Mar/Apr on the Crown. It was scheduled on a sea day. We love seafood, especially crab, so we enjoyed it. It was a full meal with the mixed seafood served in a big bowl. We did not ask for more as we are full with the initial serving so I am not sure if they will serve additional when requested.

The $29 was worth it such that we hope to have a similar meal on the CB at the Steamer Seafood. There was none.