After someone completes a form, they're shown a confirmation page. Before today that confirmation page was pretty basic. But now the page contains all the details of their submission to help the submitter confirm that they've entered the right information, and look better while it's at it. Here's a preview:
We also took this opportunity to clarify that the form was actually submitted by removing the "Start Over" button. An easy link to fill out the form again still exists for those who need it, but it's been renamed to "Submit another response" and given much less visible weight on the page.