The Temple of the Ocean King has some devious (and, frankly, tedious) bits that I would say is meh game design. However, there are also times in it, especially once you do start to find all the shortcuts, that you appreciate just how intricate a temple this is. And that's exactly what one has cmoe to expect from Zelda. Shame about the constant re-running (and the spiritdepriving towing of keys), but it's a downside to a pretty amazing temple experience you wouldn't have had otherwise. As long as it doesn't become impossible, I think the rewards will be worth it.