Two things. Even though quite a number of gamers will argue that XBox controllers are designed for a perfect fit, imo its little too bulky around my hand.

Second, in agreement to a previous post on health issue. I concur. I believe that if there is too much vibration in your hand, on a long run, you might develop some form of muscular dystrophy or muscle tremors.

zidanem9c

I agree that Xbox controllers don't feel quite right.  Perhapes it is simply because I am not used to them, but I prefer the simple elegant design of the PS controller.

 Also, you would have to be seriously addicted to the video crack to develop muscle tremors from a vibrating controller.  If your hands start to hurt, put the game down!