Being a relative newbie to git I really appreciate the Atlassian's new SourceTree app.
- Easy to start
- Deep feature set
The last few GUI git clients I've tried attempted to mask the complexity of the git feature-set whereas with SourceTree I feel like I can actually explore that feature set. I've already begun embracing branching way more as a result of the nice visualizations and as a bonus my command line git usage is also improving. Great little tool.