If you're someone who uses a z lite or other foam pad, this bag is great. There isn't an internal frame, and you use the pad as the frame - either in a burrito style around your stuff, or against the back pad. Going frameless is a bit different, but done right (and without too much weight) - i find it to be as or more comfortable.
I really like the design - everything has been thought out, with smaller webbing (that you can then trim if you really want to keep it light, a big ol main compartment with a roll top, and large deep pockets on the sides and back. THe side pockets are perfect for 1L smartwaters which are my go-to backpacking bottles, and the back pocket is good for jamming stuff into (I used it for squeeze water filter, map, etc.) I do wish it had lightweight hip pockets but appreciate that may not be for everyone. Will probaly sew / add some on which would make this a perfect pack for the right applications.
I've used it for one extended backpacking trip and the durability has been good so far and feels much more durable than some of the "stupid light" options that require a really close eye to avoid damaging. I didn't worry about dropping wherever, abrasion, etc.
Generally - this is a bit of a specialized pack that doesn't really lend itself as a do all given the frameless design and total weight capacity, but as a more specialized second pack for ultralight or shorter trips where I'm using my z-lite, it's perfect, and will be in heavy rotation alongside my framed pack