Hi
I use APM in my Skywalker just to make things more fun. I do not know how many times it saved my plane but it was sure worth the investment. Lost video signal (bad soldering) with a hill between me and the airplane once. Switched over to RTL - return to launch and it started to climb to 150 meters before coming back to me. Nervous five minutes though.
Sometimes I just put it into Fly By Wire-mode with maximum 20 degress banking and disable elevator. That way my kids can fly FPV without crashing. If I feel brave they can fly in manual mode but then I just keep a finger close to the stabilize or RTL switch
Also got telemetry to work with OpenLRS over the serial transparent bridge which was really nice.
So far I only had it to fly a 10 km track (in a square) round me in auto mode. Performance was extremely good and it kept the altitude with error correction +/- 2 meters in some wind.