Yum! I thought I would never ever eat these things but a friend bought some for a get together and I was pleasantly surprised and I would gladly eat them again... I never did find out where they bought these so I don't know if these will be as good as the ones I had. But hey, free is free... if it doesn't taste good just chuck it in the nearest garbage can!
I looked for a recipe and here is one that seems quite popular, for those who either love these already or those who are feeling adventurous.
http://allrecipes.com/Recipe/Fish-Tacos/Detail.aspx