I love this pack. I have used other packs through gear rental stores that were larger and heavier, this pack was the perfect size for me. It's very lightweight on it's own and has plenty of space if you have highly compressible gear. My down bag fits in the sleeping bag compartment with extra room around the sides so I tend to put my insulated Thermarest pad there instead. It's small enough to use as a daypack but I've taken it on three-night trips. Be forewarned, it would be a little small if you really need to pack a lot of food and water if you can't restock at your destination. Having said that, I wish that Gregory would offer the Crossflo mesh panel on their larger packs - this feature is available only on their Jade 38 and Z40 packs as far as I know. The Crossflo suspension features a tightly pulled mesh net on the back of the pack that vastly improves ventilation over the usual foam grooves that you see on heavier and more expensive packs.