TLDR: a great value
I have tried this sling on an AK, a shor cz bren 2, and a few different length ARs . Most of my guns are set up with QD and/or HK style latches which makes switching guns with the sling very convenient. It does make the built in plastic buckles a bit redundant, and a possible failure point though. The adjustment is fairly quick, but when working high to low and barricade drills i did notice it bind a little. I did find that with gloves on, it can be a little clumsy to get a hold of the pull tab for the adjustment, but I think with some work it should become easier to get to it. Initially I thought the sling was almost to long, as with a very short rifle I couldn't get it tight enough to not bang against my chest while running, but with a large chest rig, or a plade carrier and a ruck or backpack of some kind it was nice to have the extra length. The material is slick and soft, so it moves with me without seeming to stick to my gear, and doesn't chafe. In a world of incredibly expensive and complex slings, this one is an excellent value and I think it's found a place in my rotation for training days.

I like that it is fast adjusting.

This tough little sling is as advertised! It is easily adjustable, going from longer for transitions or even just putting on over your plates to shorter for shouldering or even shorter still to go hands on with any task while staying out of the way and not knocking you in your...well, more sensitive areas. Haven't used it in a mission yet, but daily on and off shows no faults in manufacturing as of yet. Not my first Condor product by a long shot and I have yet to be disappointed! Good business, shipping is always on spot and quality vs price can not be beat!