Micro is nice because it is a single-file, stand-alone executable that has mouse support, macro record/playback and syntax highlighting. (I haven't checked Nano recently). It is great for making quick edits to json configs, shell scripts, python scripts, etc. Syntax highlighting and line numbering are key. If I need to make a really quick edit, it is much faster to use this than waiting for VS Code or PyCharm to load. You also stay focused. By this I mean, your eyes don't leave the terminal window that you are currently working in. This allows me to more quickly complete the task at hand.
jftuga|9 months ago