HeadFree: Works fine.
Altitude Hold: Work, but not well enough.
It need more tuning.
Position Hold: Usable.
Return To Home: Not been tested.
I want recording video, but only my one person.
The helicopter is not stable enough.
I thought hand on control better.
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2012/12/16 update
Return To Home:Works fine.
Altitude Hold:Better then before.
My skills are not well, I can't landing fluently.
Sometimes hurt propeller.
Now, I can use android phone link bluetooth module to tune parameter.
Last twice fly test, used 8038 propeller.
I already tried the 9-inch(APC 9047) and 8-inch(APC style 8038) propeller. I think 8038 is to small. Next time will change back 9047, And I will bay another, like 1045 keeping test.
APC are very good, but expensive. I want to find higher C\P
propeller.