No blackout dates, no airline restrictions. Free concierge service worldwide.
If you have to ask you can't afford it^^
What's that Capital One Card Alec Baldwin advertises on TV? No blackout dates and any airline?
I've been able to get to several destinations in the Caribbean on USAirways Miles - including Turks/Caicos. They fly there thru Charlotte. Grand Cayman also.
Bonaire is generally Continental or Delta thru Houston or Atlanta. Or Insel but I don't think they have a card.
I also
had the AAdvantage card but never accumulated enough miles for anything useful - except magazines.