If you're living on a budget, I suggest that you buy your veggies and groceries at the farmers market or at the supermarket. If you have lots of monies, and are too lazy to buy produce then this site and their services are for you.
They bring the products to your front door for a fee, the produces are all random and depends on what they have that week. Sometimes the produces are not fresh or something you'll never use like a coconut.
I highly suggest not buying any coupons from groupon.com for this site as they will try and lure you in and then charge you a hefty fee for cancelling their services.