The data is fun stuff to look at in retrospect, but it's not really useful per se unless you have discrete goals and preferably a discrete training plan building on those objective numbers.

The numbers start to count for a whole lot more when you know they're getting you forward to levels that you haven't reached before. I don't find the objective data helpful at all if I'm not in a buildup training phase on a plan - might as well just ride and record my subjective opinion of how hard the ride was.