You can easily submit your feedback about the freelancer's performance on specific skills or overall performance for your team members to see. This information is completely private to you and your team.
To see feedback from your team members, go to a freelancer's profile and scroll down to the Feedback section. Once there, you can see all ratings a freelancer has received from your team members. You can easily edit or delete feedback by clicking on the three vertical dots.
Moreover, you can also see the average overall performance, which is calculated from all performance reviews your team members gave.
To add your feedback, click on the + sign in the Feedback section. It will prompt a new window, where you can rate their skills and overall performance on a specific task, as well as any extra comments.