Setting circles are what every major observatory in the world and every amateur except star-hoppers used until mounts were computerized. They're easy to use, and they're bombproof. On a bad day, it might take five minutes to learn how to use them.
Our club has one member who can magically point a scope at anything, only occasionally referring to charts to refresh his memory. Watching him had me so in awe that I decided to be a manual guy, and not rely on computerized mounts. I want to be able to find things on my own, like him! To me, that's truly knowing the skies.
Anyway, our human Go-To's unusual skill traps him in the dome during star parties, because no one else can work the scope fast enough to wow the crowds. With setting circles, we could relieve him. Anyone could look up coordinates in SkySafari or similar software, or even a paper atlas (!), and push the tube to the object. This is a 16" Newt on an enormous German equatorial mount on a permanent pier, so there is plenty of room for tweaking large setting circles for extreme accuracy.
At home, I don't have a chunky uber-mount like the one shown in this thread, but I'm sure I could learn to use the setting circles on my C8, or even the 60mm Jason.