My wife and I had the privilege to participate in the Blackbird Farm's CSA last season (2015). We thoroughly enjoyed seeing where our food was coming from. Farmer Greg uses natural and sustainable practices to provide the fresh produce to individuals in the community. The CSA offered great opportunities to get involved on the farm and meet the other members supporting Blackbird.
Our only regret is not being as creative with the produce we received (even though Greg provides you with one or two recipes a week to use).
Overall it was an amazing experience and we hope to participate in this CSA in a coming season.