It's easy to get swallowed by project management tools. It's easy to feel that we can get all the information we need from a piece of software.

But it's not true. 

If you want to know how well a project is going, take your team to lunch. They will tell you more about the project than any statistic. While you're sitting at the table with your team, take a look at their non-verbal behavior. Are they happy to be together? Are they talking to each other? Are they just sitting there, waiting for lunch to end?

How your team interacts together will show if they are getting along and where there might be personality clashes. Moreover, the general mood of the team is a good indicator of the project's status.