Rating stars and reviews
Rating is the clearest and understandable system that users first look at. The rating of a seller shows the amount and the quality of the deals of the seller, the number of users who left positive reviews. When getting a positive review, the system automatically gives points to the seller. If a user leaves a negative review, then the rating of the seller lowers because of the deduction of the points.
New sellers who are trying to earn high ratings are trying to treat every client on a high level so that the client would leave a positive review and recommendations for other potential clients.
Except for rating, reviews are also an important factor. It is recommended to read the most thorough and detailed reviews. This way, it is possible to learn about the users' opinions about the quality of the seller's treatment and the seller's items. One could find out what were the challenges other buyers faced with the seller. It is worth to pay attention to those reviews in which similar issues are brought up. This means that the seller has similar problems with service, wrong descriptions for items, and wrong images.