We have gotten some FCF, and out here in rural southeast, it is about the best option. it IS expensive (box cost plus $14 freight on the seaplane!) so we did the every-other-week option. There were a couple of times that the box got held up in Juneau because of bad weather and the seaplane not getting out here to us in Pelican, and those times I did have some wilted veggies...but in general we've been pretty happy with it. We just learned to not try to count on the boxes in winter...we told them to cancel all our boxes Nov-March
It's not worth it to me to pay that much when I cant' count on the stuff getting here in good shape. It's sad to be stuck with frozen/canned all winter, but that's the reality of living out here.
With all that said, we don't have a real grocery store, so FCF is our only realistic option for decent produce...if I lived on the road system instead of an island I would not be using them. They *are* pretty dang expensive, especially when you have only some choice over your box content (they let you exchange up to 5 items from whatever the 'list' is that week, but not more than that...)