Dear Tom,
Auto landing seems to work quite well in newer firmware on electric models but on fueled models
it does not seem to cut the throttle properly.
Moreover I think there should be a provision of choosing to use ether the barometric or the GPS height or a mean of the both. This will certainly help those prefer to stick to local missions or those adhere to long distance flights.
Cordially,
Kang.K.P.S.