They covered most of what you need to know.
Just learn what he is and isn't guaranteed, when to poke and what to hold, and as for oki, delaying wakeup negates a lot of what he's able to do.
It's also beneficial to learn which of his combos gravity-wise will punish your specific character's wakeup. Not every wakeup is punished by his bnb and he has to alter the gravity to do so, specifically Hellboy and Wonder Woman come to mind.
This means when you're able to tell what will and won't work on your wakeup, you can do so freely without fear of eating another 300 meterless just for waking up