Divi is newer and supposedly the only casino in the Virgin Islands (or maybe the USVI?). It's connected to a resort with a nice beach.
This is a TINY casino, but it was fun for an evening. The tables are mostly $15 minimum, but they have at least one $5 blackjack table and plenty of nickel slots. The whole thing is in one big room (cold -- bring a jacket or wear pants), and it seems the patrons are mostly locals. The live entertainment at the "showroom" is visible from most of the room. If you want food, there's a very low-scale counter to one side. Edible and largely affordable for island prices, but nothing spectacular.
To get there: Take a cab for $15 (if you're going in the evening, reserve ahead of time or pick one up in downtown Christiansted), or try and catch their free shuttle. We took a cab there, and the shuttle back. Warning: The shuttle runs on island time.