I have not tried every IDE/CLI or models, only a few, mostly Claude and Qwen.

I work mostly in C/C++.

The most valuable improvement of using this kind of tools, for me, is to easily find help when I have to work on boring/tedious tasks or when I want to have a Socratic conversation about a design idea with a not-so-smart but extremely knowledgeable colleague.

But for anything requiring a brain, it is almost useless.