Summary: It's become more difficult to find FireWire drives - especially quality drives like WD. I needed a quick external drive for my wife's iMac - she works in photography, so transfer rate is a big issue. Her mac doesn't have USB 3.0 and Thunderbolt drives are still relatively expensive.
Summary: had this drive for two years. tough as nails and performed great...until it got taken out in a lightning store (and yes, i had a surge protectors, that also got fried). shed a few tears when this old buddy keeled over, will probably buy another one
Summary: If you have large files to back up, such as home videos, this is a great way to do it. This HD has FireWire, so it works well with a Mac and has good data transfer speed. I have several of these and love them.
Summary: Just received this product today. I got it for storing audio files for Pro Tools music production and recording software, which can be a bit harder on a hard drive than normal tasks - since you have multiple audio track asking for audio in different places pretty much constantly when your working.