Here is what Michael Shakleford has to say about the game. Note that the payouts in his game are slightly different especially the BJ payout. He said this game has a 1.4% house advantage and if there is a side bet the house takes 9.2%. I have never played the game but if your 3:2 BJ payouts are correct then this looks like a decent game for the player especially if you know how to take surrender. Normally on cruises they make you bet $6 just so you bet the side game with the extra dollar and BJ pays 6:5 so if you bet $6 and hit BJ your extra dollar only pays 1:1.

The game is with one, two, or six decks.
Dealer usually hits a soft 17.
Player may double after a split.
Player may resplit to up to four hands, including aces.
Player may hit and double down to split aces.
Player may double on any number of cards.
Player may take late surrender on any number of cards.
Player may surrender half of total bet after doubling, what is called "Double Down Rescue" in Spanish 21.
A player hand totaling 20 or less, consisting of six cards or more, except after doubling, automatically wins.
A player hand of 21 points, consisting of 5 cards or more, except after doubling, pays 2 to 1 instantly.
A player blackjack always wins
A player blackjack in diamonds pays 2 to 1, all other blackjacks pay even money.