Well, define "easy" ...
It is a great book, at least what I have read over so far, and is basically a DnD oriented book. It has all the info needed for running it with C&C but that is your question/problem I suppose.
It does not have d20 stat blocks for running it with a d20 based system such as DnD, AE, or whatever. This means you'd have to create stats for some things in order to deal with combat, etc.
Now, I don't think it would be that big a deal for some people, probably most on these boards really, but for others I can see that becoming a major pain.
If you don't mind having to come up with NPC stats, then I would call it pretty easy. Most of the monsters used in the book have equivalents in the MM that aren't that far off in power level to what is intended. I would suggest looking at the book, remember, I am a fan of the Trolls and deal with them a lot due to working with Necro. The fact that I write gaming material means that what I think might be easy to do, might not be easy for you.
Patrick