For each uShip transaction, the shipper and service provider are allowed to rate each other by leaving feedback for one another. Feedback consists of leaving one rating (positive, negative or neutral), along with a short comment about your experience. Feedback scores are calculated when another member gives you a +1, 0, -1 score.
When a member leaves more than one of a particular type of feedback, for example three positive ratings for another member (for three different transactions), the other member's score only increases by +1. For example, if you leave 3 positives and a negative, only one of the positives and one of the negatives will count against the score, netting to provide a score of 0.