I used pico or nano as my everyday unix coding editor for something like fifteen years, starting in the late '90s. It was just fine. I couldn't stand vi and didn't see the point of emacs; I type faster than I think, so I never found that text-editing was enough of a bottleneck to make sophisticated automation worth the effort.

I only stopped using pico/nano after writing my own editor, which blatantly stole pico's interface design.