Leadpan you will need a large bucket of patience and alot of time. It is awesome when it is tuned and programmed. You will have to read a lot to get it to do everything possible. The more channels you have on your radio the more in-flight tuning you can do. Be Extra safe as one incorrect parameter in a flight mode will create a white knuckle, knee knocking few seconds.
It took a few days of take off wobble land adjust for me to get reasonable flight. Still working the flight modes out. Stabilize is your friend.
Be extra safe. It is autonomous (scary music plays) but very cool.
GPS usually will not acquire a 3D fix when inside.
Let us know how you are doing.