A friend recommended this to me and I have to say I was blown away, this is the real deal, the complete vocalizer for the characters of L4D1. You can tell simply by using it that a lot of work has gone into its making and it's truly awesome. I'm making an account on this site simply so I can write this review and give the maker of this vocalizer the recognition he/she deserves. Rated 5 stars.
Probably the best vocalizer for this game, every other I've tried has either missing lines or just a couple of scream wheels which get annoying after some time. This one however is the full package, just read that juicy description. Deserves all the praise, fun never stops with it, recommended all the way!