BDO is an extremely deep time consuming game. If you are used to more modern mmos where you can play for a couple hours a night and be top 5-10% you will find bdo very overwhelming. Everything in the game is fun to do and the world is incredibly absorbing.

You don't have to play it that way to have a great time though. A guy named Fevir on YouTube said it best. Treat it like Skyrim or another single player RPG and you will have hundreds of hours of fun ahead of you. But if being competitive is your thing be prepared to spend a lot of hours grinding various things.