Not really worth $185 to me, but all-in-all it was fun.   The staff (our dive leader was Alex) was knowledgeable and genuinely seemed excited to share their place with us.    I didn't get any pictures because the flash on my camera wasn't strong enough to trigger my strobe.  The water is about 14 feet deep and in the mid-70 degrees.     You don't ever get very close to the sharks, maybe 15 feet away or so, I've been closer to them in CZM.   Glad I went and I might consider going again if I found myself in Minnesota again.