I love my camelpack. I just started riding this past year, and started with a water bottle, but moved up to a camel pack.
In the beginning the camel pack was the only way for me because I could get water without stopping, and I was always needing water.
As I seem to be in better riding shape it is not as big of a issue, but I still ove my camelpack. Got a new one for xmas that is smaller, but has less storage.