That is a good question, but is still a little broad. A "good" area to me is one that has coyotes in it, evident by either droppings, tracks, visual sightings by landowner, or response to locator type howls.
A good set/stand is one to where you have the advantages of the sun, wind, and cover. And the perfect set/stand adds in some cover for the coyote to come to the call in yet with some open before the coyote can get to the "bust ya" spot.
When you get these found they are the honey holes. But spots are not always like this, which is what makes this fun.
later pup