Another benefit is that since they use the same menu all day, you can use this lunch voucher during dinnertime.
When we were there, the waitress said we could use my daughters voucher for an adult entree so we bought her a kids meal (unnecessary with all the appetizers and food on our plates) and Hubby and I each had the surf and turf. (We were going to split it.)
I don't know if I caught them on a good day or what for the vouchers but we were stoked.