It is a Chinese exchange which was launched in December of 2016. Because of unfriendly attitude of China towards crypto, the exchange was registered in Luxembourg. The exchange has problem with liquidity since its inception as users can only trade major cryptocurrencies only.
The exchange accept only cryptocurrencies as a means of deposit, so users can deposit bitcoin, bitcoincash, bitcoin gold, ethereum, ethereum classic and skycoin which is the coin of the exchange. One interesting thing about this exchange is that no fees is taking from either a market maker or market taker. But when it is time to withdraw it will take 0.15 percent of the amount you are withdrawing as fee, which means is only good if you are withdrawing small amounts.
As per security, it has a good level of security both for funds and users data. It also has 2Factors authentication. The website trading view is good to look at, but no margin trade. Customer support service too is not well spoke of, as many users use to complain about this.
Although this exchange has never been hacked but it must be use with caution.