First of all, I must say that Okex is not my favorite exchange, but I use it to sell coins and tokens that are not listed on other exchanges. I also participated in an options trading simulation and got a good amount in BTC.
I prefer fully regulated exchanges like Coinbase or Liquid because I trust the exchange to only have a regulator that meets the security standards.
However, I use OKEX to sell smaller coins and tokens.
They have a good community, great managers, and good supSee full review