That's the pack my youngest son bought, to carry gear for his younger kids and also his surfing wetsuit (heavier on the way out than the way in, since it doesn't dry much in the humidity of the Olympic coast). It's big and it's heavy, but when you're acting as sherpa, a lightweight pack really doesn't do the job. Once the kids hit their teens and carry all their own gear, you can go lightweight (you'll have to if you want to keep up with them!).

I personally can't wear any Osprey pack; their belts just don't work at all on my hips! But my son finds his Aether 85 quite comfortable. YMMV, for sure!