I'm not familiar with the Kanati but have used GN quivers for years now and like them a lot. I tried a quick detach a few years ago on my take down but still just go back to the strap-on. It's just too simple and easy in my opinion. While hunting, the only time I take it off is when on the ground and expecting close encounters. The rationale there is to minimize movement only, nothing to do with noise.
One thing about the straps, if left on the bow for long periods of time they might dull the finish of the bow. It happened to me a number of years ago. From September to December my quiver only comes off during longer travels to hunting spots. Its basically on the bow for 3-4 months. To protect the finish on the bow I use mole skin and cut 3/4" strips and apply that to the bow where the straps attach. I get repeatable quiver placement on the bow with this. Not sure if it makes much difference, just something I've always done. I always try to get the same balance point that the bare bow has in the grip region with a quiver full of arrows attached.