Just got the book yesterday.
Looks like the worst of the bunch if you liked Illumians from the Races of Destiny.
It's certainly the worst illustrated.
I just don't get the whole need for the new race when we have winged elves and other winged humanoids already out there.
Then again... same could be said of goliaths since half-giants were introduced in Psionics Handbook.
I also didn't feel any of the secondary races were winners. For example, Races of Destiny had half-ogres and others while Races of Stone had Whisper Gnomes. I didn't want to play any of the secondary races here.
I do like some of the PrCs and racial substitition levels though. Now I'm just thinking of how to combine a halfling rogue whose goal is something like knife-thrower/invisible blade type deal.