Burn Legend is my favourite Shard, and I expect these will be a great help when I get to play it. They ought to make book-referencing completely unnecessary.
Plus, they present the mechanics of the Shard in a clear and attractive way. I prefer reading them to reading the same material from the Shards Of The Exalted Dream PDF.
I would have been willing to pay for these if they weren't available for free.
[5 of 5 Stars!]