I have had a very good experience with ThredUp. I agree that I don't get a TON of money for the clothing I send, and somethings aren't accepted that I think should be, but since I would otherwise be giving the clothes away, I think it is a great system. If you want to make top dollar for your clothes then take them to consignment. The convenience for me is worth it and I get SOME money rather than none when donating. I have turned the money I make around and gotten some awesome deals on beautiful clothing for my daughter. This fall almost all of her dresses were bought through ThredUp and covered by the money I made sending in clothing. I recommend the site to friends all the time.