I had been using an older CamelBak bladder forever, since I prefer it over other bladders. I got some new Antiodote bladders to put in some new backpacks, and I love them!
The divider is awesome. It prevents it from sitting awkwardly in your pack like a balloon, and makes it easier to handle.
The Quick-snap cap that tightens with just a quarter turn is great, and saves my thumb from the pain of trying to screw caps on.
Bottom line: Awesome product. You will definitely be happy with it.