My son loves dragons. One of the things he loved the most about D&D4 was the ability to play a Dragonborn. But we didn't get to play that much D&D4, he does get to play a lot of Pathfinder. So Children of Wyrms is a great product.
Let's start with the obvious. You get to play half-dragons, quarter-dragons and dragon-bloodied (not their word) characters. So dragon plus some other race. The details for the race creation is detailed. The bonuses are detailed as expected and follow from the Pathfinder source. So nothing is unexpected here. All four "races" are detailed and special attention is give to Draconic Sorcerers.
Plenty of feats are included as are magic items.
For the old-schooler there is even a table of random physical traits varying by generation.
Part 2 deals with the "Birds and the Bees" aspect of dragons and birth. It is assumed for the most part that the father is dragon and the female is humanoid. I suppose the reverse does not pose as many problems for a dragon female.
The book is only 30+ pages, but packs it full.
The artwork and layout is top notch, what I have come to expect from FG actually. And works as good companion piece to Sisters of Rapture. I am guessing from the point of view of both books the Sisters spend a lot time with dragons.
I am not 100% sure I'll use the entire book. But I do plan to use the feats next time my son's "3.x Dragonborn" levels up and it really has a lot of potential.
My only con in this book? No rules for playing 1/2 Chromatic dragons. Not that I can't figure it out from all of this, but the assumption here is that only good dragons do this. I get that and I understand where the authors are coming from, but the option would have been nice.
[5 of 5 Stars!]