I like having everything paid for. And if you do many signatures, it's the way to go - because that will eat up the dining plan way too quick. We always end up buying a bunch of stuff at the end with the snack credits - but they're nice to take back to the kids friends.
If you like having TS meals, it's the way to go. If you consider it a drag on your time, then it's probably not the way to go.