The Vulcan is big, heavy, and hard as nails. You can throw as much weight as you can carry into its tardis-like main compartment, but you will break long before it does! There is not much in the way of fancy extras here, straps and buckles are basic but rugged, but they do the job, its easy enough to strap things to the outside using the built in anchor-points. The two 10 litre side pouches are detachable and can be strapped together to make a passable daysack, a useful feature although I would always use a purpose-built daysack if possible. The heavy padding on the back and waist straps do help when carrying heavy loads, but add to the overall weight of the backpack which is considerable.
Overall I think this is a great piece of kit when used appropriately, on long multi-day expeditions when a lot of kit is needed. It is also good for gap-year type travel as the straps wont break when its being slung up onto the roofs of Peruvian buses etc! If you want to carry a picnic and a spare towel to the beach however, don’t get the Vulcan! It’s a beast, and needs to live in the wild!