I have no experience of anything else remotely recent, so my opinion counts for little, but I'm perfectly happy with my DX5c. It has more than enough adjustments than I could ever need and it's going to take me a while to work my way through them all. Took my buggy to the park today and got far further away (other side of a full-size running track) than I would ever want to on a regular basis with no signal problems.

It does feel slightly plastic-y in my opinion, but I don't know that any comparable radio would be any different. It's super lite, so I can't imagine any long-term comfort issues.