this year has shown the pro's/con's of this strategy.
it is a "running" game. the most important rule is "once the money is in your pocket; leave it there." Of course, you can close out trades for a loss as long as you immediately wash away that loss by selling another covered call.
I like to think of these as the "eraser at the end of the pencil"....there for everyone. Some need them than most..But it is good to know there is a 'safety net" for all