Agree with most people her. Get a good brand radio and you'll save money in the long run.
When you outgrew your trainer, you may want something sporty, maybe try helicopters, warbirds or even jets.
A good computer radio will do it all, no need to upgrade later.

Be sure there is a place close buy where you can send it in and get repaired, when something is wrong with it.
Also it's a good idea to have a spare tx for that case...
Also check the prices for receivers, you might want to buy quite a few.

I am quite happy with my Futaba 8FG, once you figure out the programming, it can be set up fast and easy. You can see expo and pitch curves on the screen and has an SD card for an endless # of model memories.
For the cheaper models I use RXs from Value Hobby, they are around $22 and have work flawless for me.

As a backup I have a 7C, which is nice, but the small screen makes it more difficult to program.