I'm right behind you. I freakin' love my Exo but I'm movin up to the 5500 for a longer trip this year. I've never tried a Kifaru but the reason I didn't go with their packs is because of the packs themselves. I just couldn't find one that really appealed. After @fillthefreezer turned me onto Exo, I knew I had found the land of milk and honey. Everything in one pack and super easy to access, with an awesome comfortable frame to boot? Sweet!