My macbook being my first notebook computer and me being a fairly regular gamer, the heat issue was something i noticed right away. When playing 3d games the fan would (as expected) kick into high hear right off the bat, i had been monitoring fan speeds and temperature while gaming, just for kicks. The fan would sit at 6000 - 6400rpm at around 80C. give or take. well i went a purchased this 'cooling pad' for 10$ and was blown away with the performance. It reduced my fan speeds to 4000-5000 and the temperature sits at 70C now. WOW. best 10$ i've spent in awhile.