Why NOT read it? Why are you hesitating?
Consider: if it is full of lies and slander, you will recognize it as such, dismiss it, and be able to honestly say you tried to learn about JWs from an 'outsiders' perspective, but found the result lacking.
On the other hand, if you find it (as did I, and many many others) full of documented facts, then you should have nothing to fear from such an open and honest consideration of the facts. You can then decide, for yourself, how the newfound facts will affect your actions.
You say you have had positions & responsibilities in Bethel (Bethel == a Hebrew word meaning "printing factory") and have seen the problems & secrets that the rank & file have been exposed to. Just the same, even if some of CoC is a review, it could be informative to see it all together at once. Sometimes we don't realize how big a problem is until we get the big picture.
I know of one (former) Bethelite (Bethelite == a Hebrew word meaning "printing factory indentured servant") who claims that he read CoC while in Bethel, and he says he was not alone in doing so, and that it was not a secret. He says it had little effect on him at the time because, like you, he already knew how pathetically "God's Channel of Communication" was actually run.
In some ways, you are correct: JWs are just like many other clubs, groups, societies, parties, organizations: there are many good people, a few jerks, and a lot of human mistakes made. The difference is that precious few other groups claim to be solely chosen by god to be his messengers; few other groups are pious or crazy enough to draw organizational charts with Jah and Jesus just above the Board of Directors (i.e. Governing Body). A group making that claim should live up to a MUCH HIGHER standard, not be simply "as good as the others". If you really are just happy with the "good people" and "good acts" you see in the world of Watchtower, then you might consider switching to the Rotary Club or perhaps Habitat for Humanity. I promise you, you will feel a lot better doing a volunteer work which actually helps those in need. (WT claims to be a "charitable religious organization", but I see very littly charity and very much book & magazine selling).
Please spend some time considering that the Watch Tower Society expects others to verify THEIR religion; why not turn the focus onto yourself and see what happens: http://quotes.watchtower.ca/verify.htm .
~Quotes, of the "no longer judges a book by its cover" class