Joining a CSA

So, I'm doing some research about direct marketing and trying to decide whether or not I should get a share in a CSA (community supported agriculture) this spring. A csa is a relationship between a farm and a group of community members/shareholders. The members buy a share of the farm upfront, before the growing season, and assume some of the risks that are inherent in farming. They pay for the operating costs and labor ahead of time. Then the farmer distributes the crop throughout the growing season.

It provides garunteed financial support to farmers when they need it most and the customer knows exactly where their food is coming from and how it is grown.

I've been considering Helsing Junction Farm:
http://www.helsingfarmcsa.com/about_us.php

It's owned by two women in Washington and for a small share it is only $25 a week for a big box of produce. That seems like a great deal to me for fresh produce. We'd have to pick up the box less than a mile from where we live, every Wednesday. Plus the farmers seem like people who put a lot of thought into their farming practices, including treating their workers fairly.