Once and likely never again. It is too hard to verify seller ratings and I wound up buying a fake. Now, the ensuing prob was partially my fault, because having received the bag pictured and not really knowing the brand I bought well I left positive feedback...then was humilated online when another poster followed by several others said it was fake. Went back to Mercari to try to explain, but you can’t get a person, you just wind up in a click here loop. Went through Paypal who had more hoops than usual and I was able to return it for a refund. The really bad Mercari parts are that while feedback completes a sale, you only have 3 days to leave it so if you are trying to verify authenticity after purchase, prob or not, it’s yours after 3 days also, they then sent me an email threatening to deactivate my account if I ever turned them in to Paypal again because buyers are to go them even though I was unable to reach them. Again, partially my fault, but they have really bad customer service.