I don't see $60 of value over a few customized git aliases. The 'easy visualizations' in a GUI can be just as easily teased out with .gitconfig snippets:

> lg = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --date=relative