This page does a very good job at explaining what this project is about. I'd like to have a comparison of features with the competition somewhere (on another page maybe?), but this is very good.
Just to add to the positive feedback - the problem statement of "people in different roles have different goals" spoke to me immediately. If you stay focused on solving that problem, and pull it off really well, this could be a great product! (I signed up, but haven't played with it yet.)
Interesting project, I'll give it a try.