$20 Off Healthy Surprise Snacks Box via Plum District

Plum District is offering $20 off any monthly subscription to Healthy Surprise - a subscription service that sends you a box of new healthy full-size snacks delivered to your door every month. I personally haven't tried them, but based on the information on their website, there are three box options: Starter Box, Healthy Box and Large Box:

Healthy Surprise Subscription Box Options - Stater, Healthy and Large

If I were to use the $20 off coupon, I could get the Starter Box almost at 50% off. If it looks like something you'd want to try, you can get the $20 off coupon by registering at Plum District. If you are not familiar with the site, it is provides daily offers "By Moms For Moms - a community of moms sharing deals from local and national merchants for other moms to enjoy."

Do you subscribe to Healthy Surprise or any other food / snacks subscription service? If so, what are your thoughts in terms of value, snack choice, convenience? If not, are you willing to give them a try?