Regarding auto-complete, I find it is extremely rare that typing speed is what slows me down, nor that I end up having to chase code around. There are plenty of fast search solutions for terminal based editors, but I don't even use things like ctags because the times I've tried it the speedup was never compelling enough to justify yet another thing to install on all the machines I work on.

Solving the problem at hand in a good way is usually far slower than editing the text in my experience. Maybe I'd think different about that if I went back to using C++, or were coding in Java or another verbose language, but thankfully I don't have to.

But the bigger reason is: They are GUI apps. I do 99% of my work over ssh connections to servers where I have lots of screens open and waiting for me to attach with all the state I want ready and waiting no matter which machine I happen to connect from.

I have shortcuts for a dozen machines or so on my desktop that throws me straight into a screen over ssh, and even in the two cases where those machines are across the Atlantic for me, my screen with my editor windows is open faster than any IDE I've tried will open locally on my machine.

Being limited to local editor-state seems to me to be a huge step backwards.