Pros:

Works amazingly Just plain amazing.

Cons:

as long as your playing with friends with it installed, they see it too :P

Conclusion:

Bloody amazing.  A friend and I both have it installed, so we both see zoey.  All weapons looks right.
If you also use the Zoey Sound Pack, then its even better.  Best part, they both just go into the addons folder, no editting files or anything.

Zoey Sound Pack: http://www.l4dmaps.com/file-download.php?file=16728&entry=54285