Phantom Hourglass is slated constantly, and I can see why. In comparison to many other Zelda titles it really doesn't live up to the expectations that we hold as fans. With that being said, the game wasn't completely unenjoyable. Though I doubt I'd play through it again, I'm glad I gave it the time of day and below are a few aspects of the game that I thought fun or enjoyable.
Characters
Linebeck - I liked him from the start and he did actually get a laugh out of me from time to time, especially when he pushes over the stone Tetra and looks edgily from side to side. Heheheh..
Jolene - I imagine some people thought it pretty boring being AMBUSH-ed by her, regardless, I thought it pretty fun and she just gives you another reason to keep an eye out whilst sailing!
The Anouki - So cute. Needn't say any more.. :3
Items
Grappling Hook - Bad-ass item. It was cool enough acting as a Hookshot, but when I found out I could fling myself across holes and onto higher levels.. Well, I'd love to see it again.
Hammer - Dull and basic, though it did help me against the enemies that alert the Phantom's in the Temple of the Ocean King as you can kill them from afar when they are flying over to you. Handy!
Bombchu - Nothing special or new, but it was cool to be able to direct them.
Other
Sailing - Loved it in
tWW and it's equally as cool now, though far less to explore than in
tWW it's still an awesome mode of travel in my eyes.
(The Golden Frogs) - Very handy and saved me a lot of time!
(The Ship) - Customisation is cool, though I doubt I'll ever get every single boat part, so.... /emo :'(
Mini Games - I won't go into each separately, but I enjoyed all of them. The damn shooting gallery was a little annoying though. HAD to hit the 2000 mark before I went to sleep, lol.
To sum up, it's really not as bad as people make out, returning to the TotOK multiple times was fun to me, not boring or repetitive and you even get a portal when you get to the 6th floor. New items open quicker methods and when you enter for the final time you are able to kill the Phantom's (NomNom treasure chests for killing all of the enemies on each floor.) Could do with more character development and more exploration but I did enjoy the game!