This feature allows clients to rate each other. Highlights of this feature:
To start using this feature you only need to paste the following tag:
{listing tag='user_rating'}
into either the page template or listing details template used on the listing details page.
Once enabled you would administer this feature here within the admin tool:
SITE SETUP > USER ACCOUNT SETTINGS > USER RATINGS
That admin tool looks like the following:
Within that screenshot you'll see configurations for: