RE: What DON'T you like about your Tx?
Had a Futaba 6EX. I didn't like the fact that ALL of the dual rates were on one switch.
Almost bought an 8FG. Decided against it, felt "slick" in my hands, afraid I would drop it. That, and I fly thumb/finger both on the right stick, and I kept getting my finger between the stick and the TX case when giving full down elevator and left aileron when I held it in the hobby store. Mind you, that's just me. I have no comments on how the radio operates, I didn't buy it.
Currently using the DX7. It's ok, programming is a little awkward compared to my old XP9303, and you have to watch out that you don't accidentally push the bind button on the back as you turn on the radio, at least when it's setting in the box I use to carry starter, radio, tach, etc, when I'm racing. I have had that happen and ended up setting out a race because the TX and RX were no longer bound. Other than that, no problems.
Thinking about a Hitec A9 maybe this winter. Don't know yet..