You can capture user feedback from your website by embedding a Feedback Widget. Hotlink the JS and CSS files and add your token. Example:

?<link href="" rel="stylesheet" type="text/css">
<script type="text/javascript" charset="utf-8">
    window.FeedbackOptions = {
        planboxToken: 'PLANBOX_TOKEN',
<script src=""></script>

You should check the JS file for more options. 

The Feedback widget consists of a button which appears left on your page (or whatever position you specify in the CSS file). When you click on that button, a dialog appears allowing the user to type in their feedback. Their feedback can consist of a suggestion, a praise, a dislike, a question or a bug.