What does it do?

Yep! All stuff we're thinking about / working on. :) ^AM

Its a little wireless module that hooks to your OBDII port in your car. As you drive, it tracks gas mileage, hard stops, quick acceleration, speed, route, parking spot, etc. Then reports on that/gives you scores based on your driving habits.

Oh, and it also gives you audio cues if you're wasting gas via acceleration, hard braking, etc. And let's you diagnose check engine lights.

Do you find you benefit from the information?

Nope!