Just a head's up though - even though they are good until midnight of your check-out day, you might have problems with it past probably 3 PM or so. It will say 'no credits' but they have to call the hotel to confirm, etc...
We were on the Premium plan did a "room only, package, room only" combination and at our dinner on our check-out of package day they had to get the manager involved who had to call the hotel, etc... and it caused problems but they did find that even though the card comes through with 0 credits, that yes we did have credits. Also caused a problem at the food court about 10 - 11 PM as I knew we had a couple more credits and I was going to use them by golly (poor people in line behind me!).
It worked out OK but just be aware of it and if you are doing a sit-down or even counter service maybe you can give them a heads-up so they can get the manager ahead of time and have less of a delay.