Meh, I preferred how it looked on the GameCube, if you're going to with the cartoony style, you gotta make it look cartoony. At least Sony kept Sly Cooper looking cartoony with the PS3 incarnation of Sly. Wind Waker HD on the other hand just looks kinda soulless.
And I feel about Wind Waker HD the same way I do about Ocarina of Time 3D and the inevitable Majora's Mask remake......yawn. I already played these games and I honestly like the old timey graphics. But to make it even worse is that the Wind Waker has aged very well thanks to it's graphical style and it being on the GameCube, while you could at least make an argument justifying the Ocarina of Time remake. Remakes should only be done IMO when the game has aged very, very poorly like Metal Gear Solid and Resident Evil.