I'm in the process of updating my radio equipment and I was thinking about getting a Turnigy GTX3 radio system, which is basically the same as a FlySky GT3B. But after doing some research and learning that they have issues with expo settings and the only way to fix it is using hacked firmware, and even then they won't be close to perfect. So I decided against it. I'm going with a Spektrum DX3C, it's $100 and I can use OrangeRx receivers with it, which are $11 on HobbyKing. Killer deal and the range is even better with them.
I'm all for saving money when I can, but the GTX3 just seems too sketchy. I mean, having to flash it as soon as you take it out of the box just doesn't sit well with me. At least I know Horizon will take care of me if I have an issue with the Spektrum system, I don't know what kind of support FlySky has.
I considered the Futaba systems, as well, as I've owned a few before. But the cost of the receivers killed it for me. Around $80 a piece and I have 5 vehicles at the moment, so that's $400 right out the gate, on top of $200 for the 3PM-X. Just doesn't seem right. That's like buying a $60 printer and having to pay almost as much just for the ink cartridges.