I know a golfer like the one Jen describes. Rarely gets to play, but whenever he does, shoots better scores than he probably should given the lay off. Swing is really, REALLY flat (flatter-than-Kuchar flat), really short, with a really sweepy-looking release. He hits it long high and solid, and doesn't need to hit many balls. But when he saw his swing, he immediately tried to change it, but not for improved results. His exact words were, "I hit it fine, I just don't like the way it looks."
I'll take ugly and effective over pretty and ineffective any day of the week.