Having had first hand experience with this product in its original boxed set presentation I can say I find the changes to Dreams of the First Age in this new format to be a marked improvement. The charms section has had a complete overhaul and is now mechanically rigorous as well as flavorful, enough so that some charms have made me want to try different types of characters than I'm usually fond of playing.

I did not notice any major changes to the setting material in the book so if you already own the box set you won't see much difference in that department, however if you do not have the box set then I highly recommend this pdf format, the setting information is valuable as are the newly tweaked mechanics. I'll admit that the price tag made me a little hesitant at first but so far I find it to be a worthwhile purchase and one I'd recommend to any fan of Exalted.