The biggest advantage in my mind to the Jeti is that it's so much more than just a transmitter/rx, it's an entire universe. Nowhere else can you program your speed control from your radio, not to mention the advanced programming of receivers, telemetry devices, etc. all from the radio's screen and buttons.
While battery voltage may be enough for you, the first time you have an opportunity to fly based on mAh consumed from your flight battery instead of voltage (which fluctuates widely from your motor and BEC load) you'll never want to go back. A feature that is, I believe, still unique to Jeti telemetry...
From a radio performance perspective, I've never even had a hint of a low quality link to my planes. Including when I had one go down into a marsh about 30 feet below the line of sight at my field. (uncontrollable spin due to a gyro that I didn't turn off fast enough).
I also love being able to turn the RX on and off from the TX, can even turn the main pack on and off from the transmitter with the Jeti MainSwitch.
Peter+
Peter+