I really don't think there is much between JR and Futaba when they are used and installed properly. You can't expect a manufacturer to be held responsible for crap installs
I've heard of failures with both, the other week a Futura went free flight on FASST with a 14MZ and i've heard of lockouts with spektrum, both down to the way the radio was installed. I've not had a glitch on JR since moving from Futaba 2 years ago. It really is personal preference, i just like the fact that you have a bit of redundancy with the jr satelite rx's
Duncan