Summary: Very reliable. I installed it on my MacBook Pro 15" 2.4GHz. I upgraded to a 500gb from a 200gb. Runs smoothly. Very quiet. I need the free space, since i never use 10% of my HDD. Still gives me about 440 GB of free usable space. OS x Snow Leopard boots in less than 15 sec, compared to 25 sec on my older HDD. Fujitsu HDD are factory installed by Apple on MacBooks and MacBookPros. So if apple puts them on their MacBooks, i might as well.
Pros: Apple recommended, Does NOT heat-up laptop, Factory MacBook Pro HDD, Very Quiet Runs smoothly