You're kidding me right? 'git log' is a POS at really understanding the changesets and what changed when. A GUI is INFINITELY easier to use, especially for larger teams.

Just click a changeset, see what files were changed and click them to see a diff. ESSENTIAL.

If you're hacking on a solo project with only three files then yes, the command line is more than enough, but as for me, I'm really grateful for a GUI as beautiful as this.