I’ve bought some nice things, apart from one item where the seller insisted it was unworn, but when it arrived it had holes and looked like a rag! After some back and forth I managed to get most of the money back. Oh, I also had a seller trying to charge me extra postage after I’d paid her because she had under estimated the cost. She’d already posted the item so it was too late.
Sold a few bits on there, but won’t do it again as I had massively low offers coming in or what I regard as silly questions - such as “Will this size 16 top fit a size 10?” Or “If I buy this today will Royal Mail deliver it tomorrow?”. Also had lots of people wanting to reserve things and then not buying. I ended up selling everything on eBay and it was more straight forward.