Poloniex used to be in the top crypto exchanges in the world however that was like years back or so. Its high time for poloniex to get back in the game, 1st thing they need to reduce the trading fees as other competitors are offering much lower fees and second thing is if they can have a mobile app they can get back in the game.
Poloniex has easy-to-use Margin Trading and Lending via PC or Mobile Poloniex with a large volume capacity also has an inbuilt wallet to store all Cryptocurrency.