I bought the pack for daily use to and from place of work, and mainly to carry my 15" ROG laptop. It has plenty of space to fit the laptop, papers and folders, the charger, and all my assorted EDC's(extra clothes, towel, vacuum flask, keys, Beats headphones, books, etc.) My main gripe is on 3 things: the shoulder straps tend to give me shoulder burn (also experienced this on my Kestrel 38), the main compartment i wish would open up more, and the laptop compartment needs a lock or some fastening to keep it in place because it tends to move around as you walk. I love that the pack is lightweight, although could use a little more protection and thickness at the base, and a little more color contrast in the colorway. It has been with me for only 4 days and i love using it, and i've set aside my 5.11 and Mountain Hardwear in favor of the Quasar. That said, i'm a great fan of Osprey packs, the Kestrel was my first and used it in a great many excursions local and abroad. This Quasar is sure to get its fair share as well.