This report gives you the lifetime story of each visitor on your site.

You see what a person does each time he/she is on your site. You can easily find out the
visitor clickpath, what is making him/her to come back, and
where he/she converts or drops off.

The best practice is to generate a hypothesis by examing a few individuals in the group
and validate the hypothesis using aggregated data in Google Analytics.

Once your hypothesis is validated, you can then improve your site design or product offerings accordingly.