Sorry to revive this thread but I bought one of the bladders that was frowned upon. It was only 13 bucks anyways. Anywho, it turned out to be great. No taste, great valve (but if you bite too hard you may break the plastic mechanism inside. That's only if you're a complete moron though.). The bladder is thick and strong as well, and I plan to find a pack that is "hydration pack ready".