I'd been in the market for a while, and a friend of mine suggested Just Porter. I shopped around and kept coming back to these bags. I'm 6'7" and had originally looked at the Streeter, but I was concerned it might look a little small on me. I called the support number and Chris, the owner, picked up! He was super nice and informative and made sure my bag came in time for my trip I was taking at the end of the week. It came with a hand-written note referencing our call and some cool stickers.
The bag itself seems bombproof. I've already gotten stuck in the rain with it and everything stayed dry. Once inside, it dried off quickly itself. It has a ton of pockets, and I feel like I can actually organize my stuff. It also doesn't look nearly as big as I thought it would. It feels that big in terms of what it fits, but for a taller person like me, it doesn't at all seem inappropriate in size. That said, I was forced to try to fit it under the seat in front of me in my flight, and given how tiny planes are getting, I just couldn't. I had a window seat and the guy in the middle came in right after me, so I couldn't really move around much. It's possible if I had some time to work it in that it would have fit, but luckily, a flight attendant saw the struggle and put it in some extra baggage space he had reserved.
I'm only a few weeks into owning it, but I love the design, love the look, and love the company's mission. Super happy with my purchase.