I recently sell motor bike with the help of olx. I use this site because you always get more price here than from a shop if you have to sell anything.
Recently I had to sell a phone which I asked it from the shop and they were keeping it in only 2500 rs.
I posted its ad on olx and I get customer offering me 4500 rs so I sell it. Moreover its very easy to operate. I like its web designing. It provides a lot of information in a well-mannered way.
Many users use this site it means there is a lot of traffic which means more people will see your posted advertisement for your product and thus more options you have to sell it at best price. that is why I like this site.