I can confirm everything Stephanie said about use of credits as being valid last week - in our planning stages I hadn't realised that signature meals were just one platinum credit, so had quite a few "spares"... we had 16 left on our departure day... our party of 3 had early breakfast, early lunch, early dinner, I sneaked in an afternoon "snack" of Fish'n'Chips from the Rose'n'Crown, we also got salads to go from Mara to take to the airport... used 13 credits that day, ten of them after checkout, albeit not exactly getting our $$$ worth for some of them.
We couldn't do many of the tours because DD was too young... I tried for Dolphins in Depth on my own, but it was booked out on the mornings I had available... thought about the Richard Petit driving thing, but that was not included so it seems silly to pay $$$ for something when there was so much else to do for free... ended up parasailing and doing the Segway World Tour... DW got a couple of massages, and we did a carriage ride at Ft Wilderness and a boat rental from GF