Another (good) data point to add. Very pleased with the performance of my Dynon AP. "Legendary"

system in an RV-6. D-100/D-10A/AP-74/SV-32s on outer holes (pitch with hard stop, roll without...couldn't fit it in).
Concur with Brian...latest firmware update nailed the pitch (earlier updates sqauared away roll), and it just does a great job now! I also like the AP-74 for ease of use. Good stuff all around!
Cheers,
Bob