We recently purchased a couple of these bags for our travels.  They have not been used but I thoroughly inspected them for both quality and functionality.....passed both tests with flying colors.  These bags are solid and look like they will stand up to the rigor of of trips.  From a functionality standpoint, I love the size, pockets, expandability, zippers, handles, and backpack straps.  The bottom compartment should easily holds items like snorkel gears and shoes.  The main compartment looks like it can hold a couple weeks of clothing.  I wished I had found this bag sooner when I was doing my globe trotting across Asia, Europe and south America.  The suitcase this bag is replacing did it's job well but I can see this bag being my first choice when I travel whether it is for pleasure or business.  Highly recommend!