I've sold a good number of items on Mercado Libre and it's worked well for me. I used to sell things here and there on E-bay back when I lived in the USA and that worked well for me too. If you are honest, and upfront and describe your merchandise in full detail with pictures, and ask fair prices you will do well. MercadoLibre was really great for me when I closed down my retail shop, I sold EVERYTHING from the shelves, air conditioner, counter, etc. I don't know how I would have sold those things if it weren't for MercadoLibre. I highly recommend using MercadoPago to avoid having to exchange cash in hand. It's much safer.