Pros: Ever since upgrading to Snow leopard the Head parking of my old hard drive (seagate momentus 60GB) starting driving me crazy ! I finally had enough so i decided it was time for new drive. I wanted an SSD but there way too expensive. I bought this drive and i have barely hear anything, even when i put my head against my macbook. This is the quietest drive you can buy thats non SSD because samsung considerated on noise reduction with this drive. No more loud head parking click noise every 5 seconds , now theres a soft tick that sounds like regular hard drive access that i can only hear when i put my ear against my mac .

Cons: i did some research and some people said samsung dosent make the most reliable drives. This is my first samsung drive so i cant comment on that. According to samsungs website and some reviews this drive was made for durability, i dont think i will have any problems. Back up your files !

Overall Review: Great drive. Silent and runs cool. Wanted to say thanks to one of the other reviewers on here who also had a macbook, his review made me buy this drive.