Damon Hooton wrote a review of CamelBak Better Bottle w/ Bite Valve - .75L on March 23, 2009
This bottle is great for awkward people like me. With wide-mouthed bottles, I always have to stop to take a drink. Now I can drink while falling down a mountain. I use mine almost every day, and have never had any problems with leaking or spilling. The bite valve snaps down, so dropping it wont accidently squeeze it open, too.