Nope, but I did recently take the four day defensive handgun course over the Labor Day weekend.
If you can, I'd strongly advise for you to figure out a way to take the four day shotgun course. When I took my four day class, the two day defensive handgun class started out with us on day one. Other than some lectures, day two was pretty much the same for the four day and the two day defensive handgun students. Then the two day defensive handgun students went home...
Days three and four of the class we were taught much more and everyone remarked that by the end of the third day their skill level had jumped significantly. By the end of the fourth day it was a night and day difference from were we started. I don't know 100% for sure, but I would imagine that you'd find a close parallel in the two day/four day shotgun class.
Regardless, I'm sure you'll have a great time and learn a ton whichever course you end up taking. PM me if you have any further questions.