How easy is it to access/insert the water...
How easy is it to access/insert the water reservoir? And how large of a water reservoir can it accomodate?
Flora, I have the model just a year or two older than this one, so I'm not certain whether the design changed at all, but my Crestone water reservoir was in a great location. Even when the pack was full, I could still manage to fit my reservoir in the sleeve that is designed there. It's easy to access, and it fits the medium sized camelback reservoirs.