Install is super easy once you understand what's going on. Download instructions and follow them. There are instructions on You Tube. I used my DX-9. A 6 channel radio works fine. Using Aux 1 and a three way switch (I used the flap switch) allows turning the gyro on or off. This gives an escape route if things go wrong.
I set normal gain at 50%. I have about 10 flights on that gain setting and all looks good. It is rock solid. Everything is smooth and stable completely ignoring the 10 - 15 mph wind. Please note the airplane can and will crash if improperly flown. This unit is not a safety net. It just makes things easier