Excerpt: Nice grip, but the joystick broke after 4 months of light use - unacceptable. Apparently, I'm not the only one having the issue, with Nikon refusing to acknowledge the problem, and refusing to cover it under warranty. Ok, and it doesn't fit the camera perfectly, so there is, indeed, some wiggling.
Cons: Doesn't Fit Camera Well, Fragile, Unreliable
Excerpt: [...] this newest grip/battery pack from Nikon is more then just pathetic, it's laughable. Why Nikon, why? Nikon always allowed you to place TWO batteries side-by-side in their grips. Not this time! You have only ONE in the grip, and one in the body?