It's an excellent pack, cinches up tight, mount it front or back, strap it to something else, you can pack the straps and use it as a simple satchel, or use the shoulder strap.
Very high quality materials and zippers.
It's for I'd consider "urban travel", great as a carry-on. Paperback books, tickets, meds, passports, journal, snacks. They've been in "the wild" but I don't drag them on rocks or things like that.
They're over $100 today, so not cheap, but at a glance on the website, they look pretty much identical to what I have (and I know my second has slight differences in design from my first).
Were I in the market, I wouldn't hesitate to drag and drop one into a cart and get another. I've not used their larger packs, and over time they've expanded their lumbar line. But I would completely expect their other products to be similar quality as the ones that I have.