Feedback is for clients who want to share any experiences, comments or suggestions with you. The feedback shows up kind of like messages - to see details about a client's feedback, click on the subject name and you can view the whole form.
This was also the last bit in the Clients articles section. In case anything is still unclear, the links to all the articles are below. Also, remember that if you've got a question or problem our Helpdesk can't solve, you can always email us at firstname.lastname@example.org and we'll be happy to help you out!