I think Stephen is falling into the old trap, "cheap & cheerful" is the old motto of those who think, the more you pay, the better it is, Flysky may be cheap, but they have a better user interface, are easier to set up & a quarter the price of my Futaba T6EX, plus the only Spectrum I have owned, failed after 15 months 0f use, for a more expensive lay out, my Flysky i6x is now 2 years old, and has given me not 1 concern, it also has a stated range of 2 kilometers, which I have no reason to doubt.
Go and spend your money on more expensive gear if you like, but in my experience, you're just getting ripped off.