Is OKex reliable?

Could you please provide some insights on the reliability of OKex? I've heard some mixed reviews about the platform, and I'm wondering if it's trustworthy for cryptocurrency trading. What are your thoughts on its security measures? Have there been any major incidents or hacks in the past? Also, how does OKex compare to other exchanges in terms of customer service and trading features? I'm looking for a reliable platform to start my crypto journey, and your expert opinion would be greatly appreciated.