The global online giant ebay is a place of online purchase and selling. The quality of product varies from vendors to vendors. Literally you could find anything in here starting from shoes to hair products. It also a very good place for used goods and anyone could sell in here.
But when the question of reliability comes, it lacks. Ebay totally relies on sellers and if they cheats u then u are unlucky.
I often saw the prices are a bit high but you could find sruffs that other vendors like amazon dont sell.
So its a good place if you wanna buy sone really odd and unavailable product but beware of scammers while buying.