There are a few people on the DLR forum who like the dining plan there, but most do it for a perceived convenience of having it all paid for.
But the reality is that if you spend less than the amount of your voucher, you do NOT get change back. So you want to spend MORE than the amount of your voucher, and you'll pay OOP for that. It's not much of a value, and it's nothing, absolutely nothing, like the DP at WDW.