with this battery, it has a good grip especially if you have big hands. a multi-function accessory because it protects the screen when you do not play, it doubles the console game time if you can not recharge it (train or plane ..) and so on .. . (the other reviewers have already done a little tour of the possibilities) the small "downside" that does not removed, for me, the perfection of the thing: doubled charge time because you have to charge the console and the extra battery, unless you have 2 chargers (which is my case): )