I've got a Spektrum DX6i and I am perfectly happy with it. It'll do plenty for most of the flying that I'm doing and it has 10 model memory. But you're going to run into many who will say you should save up and spend more on higher models of Tx's. That would mean spending twice as much. You'll have to decide what you really need and want to spend. Since mine was a Christmas gift, I didn't want her to spend any more than was needed.

On another thought, I've got a DX5e that I use strictly for a Parkzone Radian and it's works just fine. Extremely simple radio, but only for one model.

I'd be willing to bet, if you stay in the hobby, no matter what, you're going to end up with a slew of radios.

Happy flying.