You wont regret it. JR (Spektrum) has been around nearly as long as Futaba I believe, but I'm not positive so someone correct me if I'm wrong saying that. Either way, both have been around for eons...

Remember and ADHERE to these 3 things and you'll likely have 0 problems with your DX7:

1. ALWAYS use a 5 cell or A123 (or battery voltage greater than 5V when dead) on the RX. Numerous brown-outs are because spektrum RX's really do need the extra voltage. I personally lost a plane due to 4 cell (fully charged too, but with the amp draw on the servos, caused voltage to go too low and RX powered down). You can read around if you want more info on this.

2. ALWAYS point your antenna stright up when flying on these radios. Spektrum as well as others have tested the range to be greatest in this orientation, not to mention you're rarely (or shouldn't be) flying direclty over-head at the weakest signal.

3. ALWAYS rebind your RX's after you've done the trim flight. This will set the servo failsafes incase anything goes bad down the road!

Good luck!