For complex tasks, like fixing someone else's mess (or my own), I always start with a visual tool to look at the history and the commits, also look at the reflog (again, in a visual tool, it's much faster for me), understand what the mess is and if I can find anything to salvage, look at some diffs.
Then if it's just a commit I need to return to, I do a reset --hard. If I need to combine stuff from several commits, then I usually use the commandline.
I know enough about the app, and git in general, to get my job done. On the rare occasion I need more, I can look it up. I think I’ve only had to do that once or twice in all the years I’ve been using it.
But, will I venture out to stage only a few chunks of local changes into a single commit using the command line interface? Hells to the no.
Porcelain can be just infuriatingly confusing. For example, "Yours and Theirs" can mean the opposite in different contexts. The whole user interface has no common style or theme - it needs a new "visual" layer in order to not drive one up the wall.