I have the Rogue model, 70oz. I don't think I have ever consumed the entire contents in one outing, but I have come close. The bladder comes out pretty easily, and like others, I only use water, so not too hard to rinse it out and dry. But normally I just refil it halfway, blow air into it, and keep it in the freezer (LEVEL!) til I need it next. Then just have to thaw out the opening by running it under hot water for a bit. Fill it up with cold water from the fridge and load 'er up. I do take a second to completely dry the bladder on the outside before I insert it back into the carrier. If the bladder wasn't level, it might not sit so well on my back, but it conforms soon enough and iw well insulated, so after a 4 hour ride in 90oF temps, I still had ice and nice COLD water to drink which was good cause I had poured most of what was left in my water bottle on my head (way before Floyd did it! )

The weight is not bothersome to me. I have a friend who has a smaller capacity model, and she often drinks it all and has to refil it at the rest stop. So even though I may not need the full 70 oz, I'd rather have it, and not need it, than need it and not have it.

The Rogue has a chest strap which to me is very important so it won't slide around. Also it's blue.

My only complaint is that its ability to carry much else is very limited. There is a little pouch that could carry a tube or two, or a camera, or small items, and couple of tools but is not large enough to stash my rain jacket, and all those other things I can fit in a fanny pack or my small handlebar bag. Tubes and tools live in the seat pack.