I like the 3D feature, but I can only use it for a certain amount of time before it really distracts me and I have to turn it off. It works pretty well, but it is still a gimmick. But it doesn't matter, because even without the 3D, it still trumps the DSi. I appreciate the concept, but the 3D feature just doesn't go well with gaming. It makes many people tired, nauseous, or gives them headaches.