Took it out of the first time today! Starting with the pack itself, it seems durable and light. The zippers are heavier and everything seems well made. The hydration system works well and is easy to fill. The bite valve worked good and seems easy to clean. With storage, you could fit enough for a day hike and maybe even a couple days depending on how much you bring. Some extra pockets helped with wallet, keys, etc. pack was comfortable and able to be worn without issue after 2 hours. The straps do a nice job of taking the pressure off the back. I did have a major sweat stain on my back however I was doing a smaller hike and wore a cotton shirt. Plus, sweat to any degree is expected. The pack does well and I highly recommend.