I like that it's easy to use with GitHub integration (and other VCSs). The UI could be more intuitive - maybe some sorta "breadcrumb" style navigation would help? Also there are no keyboard shortcuts or commands built into this app yet which can make searching through large projects difficult sometimes! So far its been super helpful in finding issues/bugs within my own project as well helping me understand how others have solved similar problems before when looking at open source repositories such as AngularJS etc..