Fantastic book, and an excellent resource for both experienced Eberron sages and newly introduced pupils!

The Across Eberron folks obviously know and love Eberron, and their efforts on this book make that clear. So many good things geared toward the "new" folks coming into the setting, and a superb resource at the end of the book for the experienced folks for all the fluff and wonder from the halcyon 3.5e era of the setting (and some stuff from 4e as well).

Get it. It's a steal at the price, and when KB releases "Exploring Eberron," the AE folks will update the doc, and I assume keep it updated as "canon" changes (although canon be damned, in my opinion -- it's YOUR Eberron, run it as you will!)