Actually I'm pretty sure the feature overlap of this and GitGutter is nil. GitGutter shows you the diff in the sidebar, whereas this is a general git usage too

Actually I'm pretty sure the feature overlap of this and GitGutter is nil. GitGutter shows you the diff in the sidebar, whereas this is a general git usage tool (closer to SublimeGit), that has per-line staging (e.g. run git add on only some lines of this file) features that make tools like emacs's magit so powerful.