I haven't played this game for over a month, but anyway: I'm rather far in and just have the third sacred realm to visit. I'm just not too anxious to visit that fucking water dragon again because I hate the swimming mechanic (it's like they took everything I hate about the flying mechanic and made it even more terrible). I do like the sacred realm levels though, definitely a nice change of pace, particularly after getting so many hearts and weapons and abilities, they're perfectly challenging.
Most of what I love about this game is what was carried over to it from Wind Waker, which I think is a far more worthy game of borrowing from than Twilight Princess, which borrowed far too heavily from Ocarina of Time.
The mine/desert region is by far my favorite. I'm not as fond of the pirate ship as others seem to have been. I thought it was pretty easy and underwhelming. Otherwise the desert temple was pretty great. The volcano temple was great as well. I don't particularly like having to find the cubes to unlock treasure chests in the sky. I loved being able to find a random island and treasure in Wind Waker. Can't do that here. I do find myself returning to Skyloft frequently to purchase potions and items, etc. I tended to avoid trading and things in previous Zelda games. I'd rather win and earn than buy and trade, but I don't mind that so much here, I just wish there were more stories and things going on at Skyloft. I mean, there are several characters who continue to say the exact same things to me every time I speak with them for what has seemed like most of the game. Yes, i saved the little girl from the monster... ages ago, MOVE ON!
Not to sound lazy, but I don't see how one can roll bombs without standing up. I don't mind standing I guess, but in the middle of a boss fight, it's kind of annoying. I'm really glad I can continue to use won items and weapons throughout the game. It was annoying to me in Twilight Princess to win something I can't use past the particular dungeon I found it in.
Also, the harp is a poor excuse for continuing the Zelda tradition of including a musical instrument to guide you on your journey. At least have something that makes some sense with the wii remote. Some sort of flute or pounding a drum or something. It's just lame.
And Fi is annoying and far too helpful.