Bought it and even got one of the two custom 3DS cases to go with it. I had it on the gamecube, but never actually finished it. The 3DS version is dandy. The ugpraded graphics are nice (I heard one person describe it as looking like his rose-colored memories, as opposed to the 64's blocky reality).
3D aiming and looking-around are kind of fun, though it's good they maintained the original style. 3D is impressive in some points, unnecessary in others. The outside of the Temple of Time, for example, looks pretty nice in 3D. Aiming in 3D doesn't always work that well, due to the narrow viewing zone that 3D requires.
All told, it's a top-notch translation and well worth the money. Arguable the 3DS' console seller...especially to kids too young to have played the original.