As you try to figure things out on your own, you may well get comfortable gaining bad habits.
While I don't disagree, I also don't know the OP. Maybe they've been freediving Capt. Cook's Bay since the age of 6 and if that's the case: AOW isn't going to teach them anything they won't figure out themselves in a dozen or so dives. I mean, none of it is rocket surgery, exactly.