The reason I'm interested in Peak is that it may be a good tool to implement the "trust, but verify" approach to management. I feel like I under-manage my team (7 people) because I really dislike interrupting people. I generally assume everybody is doing something productive, and understands the goals and priorities of our products.
However, when a team member gets stuck or goes off into the weeds, they may not realize it themselves. Before they've spent a days doing unnecessary work or spinning their wheels, it would be great to have a non-interrupting way to notice this and give them the support they need to get back on track.
Of course you need to take the numbers for what they are - if you directly incentivize people to get their dropbox files changed numbers up, you're gonna have a bad time. Still, I see this as a potential tool to help me understand what might be going right and wrong with my team without bugging them, and that's a good thing.