I own more headsets than a flying school. After trying just about every type out there I went with the Bose-X. 2000hrs of flying and the have been stunning value for money.
The DC's are crap, over rated and over sold by Instructors at flying schools who are generally getting them cheap for selling them and are to broke to actually buy a good headset. All of the compatability problems i have experianced have always been with DC's. Saying that the back seats in my plane are equipped with the new DC's with flexible boom mic...
But the Garmin audio panel sorts out the icompatabilities.
If you can afford a Bose-X then settle for nothing else!