What is CoinEx used for?

Can you tell me, in brief, what CoinEx is primarily used for? I've heard it mentioned in the context of cryptocurrency trading, but I'm not entirely clear on its specific functions and purposes. Is it a platform for buying and selling digital assets? Does it offer any unique features or services that set it apart from other cryptocurrency exchanges? I'm curious to learn more about how CoinEx fits into the broader cryptocurrency ecosystem and what types of users might find it particularly useful.