Since I've actually been in the rough above Jeff Brauer's 13th hole fairway bunker, I'm somewhat qualified to respond.
The rough is worse than being in the bunker!
I posted my experiences concerning this bunker previously, in a post about what I call it--Paul Bunyan's A Hole Bunker. I made a smooth 6 from the rough just left of the bunker.
From the tee, I thought I was in the bunker, but, unfortunately was in the rough left. On my 2nd shot I successfully hacked my ball into the sand. My 3rd shot barely got out and my 4th reached the green from where I 2 putted for a double.
For the unsuspecting, the bunker appears small and not of much concern from the tee. For those who have felt it's sting, however, it becomes the main consideration from the tee when playing to the left, elevated fairway. If the wind is left to right---I never lay up left.
This is a very severe hazard! The correct play is sideways if you get in it!
The severity of the thing makes this 323 yard hole an even greater hole than is obvious from the photo.
That photo, by the way, is not taken from the back tees, but from in front of the ladies tee box. From the back tee, you can only see a small portion of the left fairway, since it's hidden behind a huge hill. You actually play over part of the hill to hit the blind left fairway.
So, to play aggressively to the left fairway, you have to miss the fairway bunker on the right, but have to guess how far left you dare hit it to still hit the blind fairway.
In summary, the severity of the bunker and it's rough makes you weigh all your options every time you play the hole--(1) attempt to drive the green, (2) play to the left for a better, downhill view of the green, (3) play safely to the right fairway but probably eliminating any reasonable chance for birdie.
On this short par 4, it's a great design!