I haven't been to T&C, but my sister has and really enjoyed it. If you're open to other suggestions, my favorite Caribbean destination is St. John in the USVI. A huge portion of the island is National Park, so there's really nowhere to stay on the beach (Caneel Bay resort is still closed which was beachfront and the other only other beachfront option would be Gibney Cottages if they've reopened), but most people rent a condo or villa and hit a different beach every day. They were hit pretty hard by the hurricanes last year, but recovery is going well and I highly recommend visiting. Because there are no resorts on beaches, everything is pristine. The snorkeling from shore is the best I've seen of any of the destinations I've been too. The main town, Cruz Bay, has some great restaurants and bars and I just love the vibe there.. My kids and my late DH and I used to visit there every Spring Break and I really want to head back there soon (kids aren't quite ready to go back).
Good luck with whatever you decide (and definitely use the TripAdvisor forums - the STJ one is great)
Mom to a DD (8/02) and a DS (6/05)