Personally, it's worth $7/month for me not to have to set up and maintain some random early stage software, irregardless of any moral considerations. That said

Personally, it's worth $7/month for me not to have to set up and maintain some random early stage software, irregardless of any moral considerations. That said, what's most interesting about this to me is how few of Pivotal Tracker's features I actually use. I mean, this basic version appears to mostly implement a drag and drop to-do list in a three pane view with n task states, comments, and descriptions. That's pretty much what I use Pivotal for in practice. By contrast, Pivotal has all sorts of nonsense that I don't really understand, like burn down or burn up graphs or whatever. Two questions: (1) Are there features that Pivotal provides beyond the features that this skeletal clone provides that are really useful and that I should be aware of? (2) Are there features that an agile project management system like Pivotal can provide that are hard to code and useful (i.e., differentiating) without increasing the overall complexity of the user interface?