I would say because "RF" is "RF". It's bound to be wrought
with problems due to the nature of the beast. I don't
think it's possible to totally eliminate RF interference
unless every device is at a specific RF frequency which
is unique to that device only.

Unless you shield it from every possible RF interference
I don't think RF technology will ever be a bullet proof
and consistently reliable technology.

I say "Sh#* Can" it and go with WiFi.