I bought one of these today, as they were released in Australia recently and I have to say, be wary of what you're buying if you already own an original model 3DS. I bought a black 3DS back in 2011 and have been pretty happy with it, the battery life isn't the best though, and it's always been really slow at loading the home menus, so I thought I'd get the newer model to take advantage of the faster processor and better battery life. What I got though, was one of the worst screens I've seen on a portable product- it was hideously yellow, and its max brightness was pathetic. My original 3DS' screens were far better, so I went and exchanged it, only to find that the replacement looked exactly the same.
I'm going to stick with my original 3DS, I can't handle a screen that poor after being spoilt by Apple's iPhone and iPad screens.
Edit: I forgot to mention, the new 'Super Stable 3D' feature is awful, it produces a really irritating flickering every time you move your head.