There are four way stop sign intersection that run like a clock when the drivers are all competent.
The real problems are the drivers who are too stupid, too timid, or too aggressive.
There is nothing more aggravating than a stupid/passive driver “kindly” relinquishing their right of way.
Oh, mi gosh. I hate those people. They get there on the cross road at the same time to my right. They have the right of way, and then sit there waiting for me to go through. ARRRRRGGGHHH!!!