more structure = less frustration
I have three hydration reseviors at last count. 2 camelback and this. This is my favorite. I love the rigidity for storing in the resevior pocket of a backpack. Also, the plastic at the front works as a great handle. It fills very well either propped against a rock or held in one hand.
The magnetic spigot is cool. A nice feature, but not a selling point. You have to keep track of the magnet and remember to move it from your day pack to your overnight, to your....