I went Futaba rather than Spektrum when changing to 2.4 from 36 meg JR radios. That's just my choice.

The DX7 is just about my club's default radio. We fly a lot of park flyers & most of the time the standard P/F radios cannot use the buddy cord so we recommennd a more 'quality' radio, usually the DX7. No problems at all. - John.