Praise: I found the Emergent class to be very well executed. The themes and rationales are clearly communicated through the fluff and mechanics. It is flavorful, fun, and very reminiscent of the Stand mechanics originating in JoJo's Bizarre Adventure manga and anime. I personally felt that having both character and incarnation share a pool of hit points and clearly defining how those interact with AoE and multi-target spells was particularly inspired.
For the price of "free if you want" this is a supreme deal and I will be investigating some of this writer's other material in the near future.
Update: the most recent update to the Emergent clarifies some of the language and eliminates some of the more problematic abilities (Sad as I was to see a full complement of beholder eye rays go...). It appears more streamlined and with some of the new features that impact the character when the Incarnation isn't manifested, it models JoJo Stand's even better. I have upgraded my review from 4 to 5 stars for the fixes or from 8 to 10 hours of ORA ORA ORA!
[5 of 5 Stars!]