We bought this to replace our old Kelty child carrier, which we purchased secondhand over 5 years ago. The changes in design in that time period are amazing! We love the increased padding and redesign of the waist strap. Tons of storage, we broke it in on a short 7 mile hike, and had enough room for water, snacks, diapers and our first aid kit. This pack is very comfortable for parent and child! The only annoying feature is that the area where the child's feet dangle is enclosed with nylon, so any dirt/mud whatever on baby's shoes is contained in the pack instead of falling to the ground.