It appears the frequency the flysky uses is a single and most people don't recommend it.
You can get a Spektrum Dx3 for about $100.00 or even less. I bought a 2.4 ghz Traxxas TQ transmitter and receiver off ebay for around $35.00 before. Even that would be better than the Flysky. With spektrum and traxxas they have built in fail safes don't know if flysky does. I wouldn't recommend getting the flysky.