Congratulations on your purchase!
I am by no means an "expert" because I've had my Phantom for about 2 weeks now, but I can give you the beginner's perspective.
My first recommendation is to learn how to comfortably fly your Phantom without the GoPro on it.
You don't want to possibly break your camera while learning to fly.
Order a couple more batteries.
The best, and most enjoyable, way to fly is by being proficient. Having more batteries allows you to fly longer in a given session, which "should" help you improve your flying skills more quickly and once you progress, you'll have more time to fine tune your flying ability.
Start off flying in GPS mode instead of ATTI because when you release the controls, the Phantom should stabilize and try to hold its current position. In ATTI, when you release the controls, it will continue to move in whatever lateral direction it was going until it loses momentum.
Initially flying in a wide open field is ideal.
When descending, try not to just go straight down. Move forward, backward, or sideways to avoid flying through the propwash and having to watch your Phantom wobble almost uncontrollably on the way down.
You should also download and install the most current NAZA-M assistant application (version 2.20) located here:
PC only, no Mac version as of yet for the Phantom 1.
http://download.dji-innovations.com/dow ... taller.exe
and get the DJI driver installer here:
http://download.dji-innovations.com/dow ... taller.exe
UNLESS you are using Windows 8 then go here:
http://download.dji-innovations.com/dow ... taller.exe
AND don't forget to get the Phantom default configuration file here:
http://download.dji-innovations.com/dow ... meters.zip
Here is a YouTube video link that shows how to use the NAZA-M Assistant program.
http://www.youtube.com/watch?v=tUAXL575RpU
Use this program to turn on your Failsafe settings. I have mine set to "Go-Home and Landing".
You will also use this to turn on Intelligent Orientation Control (IOC). This enables the top left toggle switch on the controller to turn on the "Course Lock" and "Home Lock" modes.
And lastly, enjoy your new unmanned aerospace vehicle!
2-Balls