The coupon report only allows you to see the coupon and how many uses it has. It doesn't allow you to see who used it. Currently, a transaction detail report has to be run, and customized to see the user information.
It also doesn't provide a total amount of discounts received by that user. This has to be added up manually.
Also, if you add a cumulative total coupon option, it would be ideal for a report to show the remaining value for the admin, but also for the user.
