I am building a -12 and just had the 796 permanently installed in my Gobosh 700 (Aero AT-4). The installation replaced the 496 and I have a D-180. It was seamless in the installation. I really love the 796 combination with the 180. It drives the bug based on the course set into the flight plan just fine. I will also likely put one in my -12 after certification (or before if I go E-AB). It also integrates with the Garmin radios too to tune to the right freq just by touching it on the 796.. too cool.
The one thing that the Dynon folks told me was that the update rate of the Dynon GPS unit in the Skyview is greater than the 796 provides out. This means smoother updates. With that said, I think the update rate of the 796 works fine. I flew with the 796 (not permanently installed, suction cup mount) down from Colorado Springs to Sebring and absolutely loved it.
The biggest improvement for me over the 496 it replaces is the big screen and I also moved it closer to the pilot to better see it. I flew a friend looking to buy one last weekend. He was absolutely amazed by the faux synviz in the pattern.
Carl