I’ve been using this pack as an overnight weekend pack and I’m pleased with the performance. The 28L size is perfect for ultralight backpacking but does have a few drawbacks. First of all, the hydration reservoir is a big upgrade from my camelback. The reservoir is easy to fill, clean, and drink from without any leaking. I did buy a cap for the mouth piece as it can be difficult to lock. The pack itself is comfortable. I’m able to stuff my down bag, rain shell, sleeping air pad, and Slater UL2 tent in the main compartment. I like how the main compartment doesn’t expand that far into the front zipper pocket as it’s able to expand further out for more items. The side water bottle pockets can also fit Nalgenes size bottles with the main compartment stuffed, but is better with 1L Platypus bottles as they are flatter and lighter. There are many small pockets inside the compartments for smaller items. I don’t like how the dedicated reservoir pocket has a lot of dead space when placing the full water reservoir inside. I would’ve also liked seeing some sleeping pad straps on the outside of the pack for foam pads. Overall I’m pretty pleased with the pack, despite using it beyond its intended use. The more weight you carry, the more uncomfortable the pack gets. Keep it under 25-30lbs and you’ll be good. I feel the price is a bit high for this pack, but the water reservoir is worth every penny.