I want to add my personal experience about this website.
The most of the sellers are not real sellers.Some people just add products with their friends phone number.most of the sellers wont write the full details of the product.specification and configuration of the products will not be clear.The respone of the sellers are also not good.
The photo they upload and the real product has lot of difference.So guys dont expect too much from here.second hand products are second hand.If your lucky enough you get good products.
You need to be specific about what you want.may be that would help you to get good product and lot of patients for searching the product you want.