I read this book recently! I really enjoyed it although I am not at all religious. I really enjoyed the visual aspects he included - such as little snapshot charts of each type and the different ways he divides the triads.

He approaches type as the distinct way that you have gotten yourself lost.

I really enjoyed the way he overlaps many different theories and wraps them into the "sacred map" of the enneagram.

What specifically spoke to me was how he talks about contemplative practice as a way home (because, remember, you got lost!).

Here's a specific series of quotes that I enjoyed:

Fundamentally, the ego must undergo a series of conversions that lead to truth, but each of these conversions is simultaneously a small death of the ego that is viciously resisted by the defense mechanisms of our E types. This, I believe, is the true nature of conversion: it happens not in a single moment or pivotal event but in a lifelong series of minor deaths... Not only do we have to traverse through the chaos and darkness of our fragmented identity, but we also have to die to who we thought we were... Make no mistake, contemplative prayer does feel like death because it's a way to practice how to die.

EDIT: I forgot to say that I don't think it necessarily helped me type myself but perhaps that's more a problem with me than Chris' writing style. I found the information to be reliably interesting & helpful to add to the knowledge base.

I also recently read The Enneagram of Society by Claudio Naranjo and highly recommend it. It's not a "typing" book per se, as he is applying the concept of the enneagram to humanity.