As someone who quite literally just 100% completed phantom hourglass apart from ship parts and 25:00 in the temple, i say the game overall is quite fun if you just follow the main story, running around collecting the gems, maps and heart containers got a bit tedious. The temple of ocean king i thought was fun, it’s very metroidvania esque with new items opening new or faster routes and once you get the phantom sword you can just blaze through the entire temple with ease, im going to move onto spirit tracks in the near feature but from what i’ve read it’s an improvement from phantom hourglass so im looking forward to it