chuckle.
at least you are getting some good points to push you in one direction or another!
in the end, you'll have to just buy one and try it to see how it is.
My experience with one was a long time ago, I used it in the winter xc skiing, I wasn't keen on the rubber taste and the hose would freeze up.
The taste thing put me off it, but I'm fairly certain they improved this since then.