When I first saw the 3DS add on, I was horrified. Then, as time progressed, I warmed up to the idea. I was actually quite excited to get one. Now I have it. My take:
Pros:
- It feels comfortable. Right stick and triggers feel natural
- The console is still as small as a PSP (possibly smaller than a Vita).
- The battery should last an insanely long time
- I can still access most of the 3DS features
Cons:
- It's still fugly.
- buttons don't work with non CPP specific games (ie: pressing "R" in Swapnote)
- Can't reach the Wi-Fi switch or change a game without removing the device
- It runs on batteries (technically, one battery but still.....)
I'd give it a 7/10. It's functional. I was kinda hoping I could use it when I play Street Fighter--for extra comfort. Personally, I'm hoping that a third party comes up with a version that sets the right analog a little lower, is thinner all around (there's a lot of excess plastic that I think doesn't need to be there--mainly along the bottom and left side), and possibly even includes a battery to extend the 3DS's battery life. I can easily conceive a sleeker design that would work. If I can, I know third parties can.








