I use IntelliJ's built-in git GUI.

I don't understand why people use command line only. Sure, learn the commands so if you need to use them you can, but most GUIs are far more feature rich than command line. With IntelliJ, I can easily view differences before committing, have it do code quality scans, automatically clean up any code it can, more easily choose which files I want to commit vs the typical 'git add .' I see most people do with command line, have separate changelists when pair programming, and much more.

One argument that continually comes up is that command line is faster. I completely disagree. If I want to just commit the code without reviewing it, I can use 2 hot keys and the code is committed and pushed. But as I do a quick readthrough of all the code first and review issues from the code quality analysis it does take more time, but still less than it would to do comparable things with command line.