The quality of the product in manufacturing is very high, and I'm sure this would last for a long time, but I found it somewhat inconvenient and not very comfortable to use.The zippers are protected by a flap of heavyweight material to prevent splashes and rain from entering through the zipper, which is a great feature, but these flaps make it harder to get to the zipper when trying to get into the bag and rezip. This is especially difficult on the small front pouch where you might want to keep something you need to access often, like a credit card or lip balm. The flap is stitched down on both the ends which reduces the usable size of the opening into the front pouch, so I could barely get anything in or out of it without difficulty, and I have small hands. If you have large hands or stiff fingers you would be very frustrated with the size of the front pocket opening.The straps are very heavy duty with heavy stitching and will undoubtedly last a long time, but the ends are melted closed in a hard plastic to prevent unraveling, but if you've ever melted plastic you know it becomes extremely hard. That process makes the ends of the straps very sharp on the corners. When snapped closed according to the instructions to gather up the excess, the strap ends create a hard lump with sharp edges where they rests on my back and dig painfully through my shirt into tender skin. I had leave them unsnapped to help alleviate the discomfort, which definitely was an improvement and made it possible to wear but looked a bit less tidy. I still had to be wary of the sharp edges of the strap ends that I didn't accidentally rub them across my arm or they would scratch my skin.I love the size of the bag. It was exactly the size I wanted to use for an all-day trip to the theme park. Unfortunately it has no inside organizer or pocket so you have to carry another small bag inside to hold your smaller loose items, otherwise everything is just jumbled into one big open area, which does hold quite a bit, but by the time you add a couple small zipper bags to organize your stuff within the space it loses the lightweight feel and convenience.It does have a back wall of material as a divider which holds a foam pad against the back, supposedly as a seat cushion, but it actually seems to be there to give the bag more rigidity and help maintain its shape. I used the area to slide some tissues, a few important documents I needed to carry, a ziplock baggie of medications and a couple bandaids. If you remove the foam you can use the area to hold more items. I was torn on whether to leave it in or out, as I like the structure it gives the bag to stand up on its own, and the cushioning it provides for items in the bag against my back all day, vs the amount of space it occupies that could be used for other items. I purchased a less pricier color on Amazon so it wasn't outrageously expensive so I plan to keep it, as I still like the size and quality in spite of the drawbacks, but if I had paid the full price as was being charged for most of the other colors, I would definitely be returning, as the bag is not convenient and comfortable enough to be worth that amount of money. Having the quality, strength and longevity is important, but if the bag is not convenient and comfortable enough to carry, it's going to last forever sitting unused in the top of my closet anyway, so the quality becomes a moot point.