Classic Game Room reviews GRIP-IT for PS3 and Xbox 360 controllers, the soft, spongy thingy that makes your thumbsticks more comfortable for longer periods of gaming (it does, actually). What may sound like snake oil is a nice way to refine your PS3 or Xbox 360 controller if you feel that the thumbsticks get slippery as you play and your greasy pizza-stained hands wear down the textured surface on your controller sticks.