Honestly, I'm finding it a stretch to come up with any drawbacks. There are a couple things that I can think of that some might consider an issue, but I don't. First, the
Power Grip does get slightly warmer while it is charging. Since I usually don't play while it is charging, I don't consider this a problem though, but some might. Second, since the
Power Grip does make the 3DS slightly larger, it might not fit in a normal 3DS case. Since I use a soft fabric drink koozie as a 3DS holder for now, the
Power Grip actually makes it fits in that perfectly, so I consider that a benefit but some might not. The only other thing that I wish it had is an addition plug-in so that you could use a normal micro or mini USB cord, as well as the 3DS charger to charge the 3DS with, since that would make it a lot easier on the days that I don't have a charger available, but with the extra battery life, I haven't found that it dies on me very often.
It's rare that I say an accessory is a necessity. Actually, I don't think that I've ever said it, but I am now. The Power Grip makes the 3DS a truly robust handheld and solves the one issue that the 3DS has, the short battery life. Consider that for this Christmas with your normal 3DS you might survive the car ride with your family to and from grandmother's house, but you won't have much time left to play while you're there if she lives even an hour away. If you had the Power Grip though, you could make it there and be entertained the whole time, and still have battery left for the car ride back. I think that is more than worth it!
