Apart from the obvious well documented and advertised advantages of the sling, I have appreciated how light it is. Both my wife and I are ultralight backpackers, so we appreciate when a bag feels light and we notice when it doesn't. This one is light.
I have noticed a design flaw. The loops on the bottom of the bag, to which the straps attach, transition from round to flat where the loop meets the seam. Unfortunately, the shape of the clips is such that the flat portion of the loop allows the clip to slide off, meaning that I unexpectedly find my straps dangling by only one loop, even with the straps held in tension. So I fully expect to completely lose one or both of these straps before we're done.
This bag is light, handy, and perfect for when you just want to bring some gear "in case". It's also small enough if you know what lenses you'll need. So, what does it fit? My camera is small, a Canon M50. I have the 22mm pancake on the camera, and a bring a 50mm lens for portraits and an 11-22 lens for vlogging. I also bring a rode wireless go, a deity d3 on camera mic, spare batteries, SD cards, cold shoe mount so I can attach both Deity and Rode, battery charger, sd card reader etc.
If I need additional lenses or gear I just use my Peak Design clip for my camera and throw in the extra lenses.
So overall, this is the handiest, niftiest, most perfect little bag imaginable.
Some have said that it could be more spacious given the size. Pish. I love knowing my gear is safe and secure. So the protection and cozyness makes me happy :) I'm glad to sacrifice a little bit of space and stiffness for the cozy protection.
It’s perfect for me. Love the size, love that it is weather resistant, love the color. I am able to fit all my photo essentials in an east to use sling.