Has anyone used this? It is like $50 from Verizon. I received a $100 e-gift card from WalMart.com for ordering my Galaxy Note 2 through them. I am considering buying one. I did a hands-on with it at a local Verizon store, but I am not completely sold on it. Does anyone own one of these or have they used them a lot? I am interested to know about the quality, battery life and the amount of games that are set up to use this controller. Any input will be appreciated. Thanks!