I hadn't read about it, so I found it very powerful.
I enjoyed the workshops, except I ended up in one about feminist mothering, and I found it odd. I had hoped to sit and listen and soak it up, and it was scary, because it basically seemed to be 'well, mothering isn't very feminist, so what can we do?'. 
It was an odd perspective to me, being a non-mother most of whose feministy friends are from MN!