Another Carnival Legend excursion question

Many posts about Bannister Island excursions, however has any one gone on the Carnival excursion " Barrier Reef & Beach Break" excursion. I know the beach break is Bannister Island. My question is how was the snorkeling on the Barrier reef. Is it worth the $$.

Thanks in advance for any details you can provide. I really would love to snorkel in Belize on the barrier reef.:D

No one has been on this excursion?