Really like this product. I was looking for a Chameleon/Shape-changer and this seems to fit the bill.
A couple of questions however - the way I read it, the Change Shape ability functions exactly like the spells as far as duration go - is that right? From Dark Mistress' comments about making the lower level ones at will abilities I think I have interpreted it correctly.
I would like to see lengthier possibilities for the shape change - about an hour a level as Wild Shape would be ideal. Perhaps a Shaped Capacity to increase the length of your Shape-Changing? Or equivalents to Extend Spell and Persist Spell? It is very hard to infiltrate the bad guys temple disguised as a bugbear servant in only one minute per level, plus I really like the idea of playing in animal shape most of the time.
I've also been looking at the Bestial Druid from Kobold Quarterly, which is excellent as well albeit, it only does shape-changing. This class has a lot more flexibility.
While I'm making a Wish List, it would be good to be able to retain an imprinted feat for longer as well - whilst you can imprint Track or Trapfinding using this, you will soon run out of Moments of Change, and then you have used all your options for the day. Obviously, Imprinting say Master Craftsman and the relevant skill would be awesome too, though that may be a little too much.
Anyway, that's just my two bob. Great Product, and I'll be looking carefully at all Rite's releases in the future.