Excerpt: This is my first Thunderbolt drive. I'm running it in the mirrored configuration and I must say that it is somewhat slower than I was anticipating. Other than that, I am pleased with this purchase.
Pros: Easy To Manage, Easy To Set Up, Highly Compatible, Tons Of Storage
Summary: This hard drive is a complete P.O.S. The first one I purchased would constantly dismount while I was trying to back up files. I received a replacement from WD, called them and had a tech walk me through the process of formatting it for my computer, and now the replacement drive has issues.
Pros: Another great product from WD. I use it on my Macbook Pro. Totally reliable and plenty fast for full HD multi-camera playback and editing with Final Cut Pro X. There's nothing to say - it just works!
Cons: Would be nice if it could be backward compatible with a USB or even Firewire output, just for compatability with other non-Thunderbold systems.
Excerpt: I bought this as my external storage hard drive. It is very easy to set up and very each to use it. Only one thing looks like downside, the speed for data transmission is not fast as expected, even though it is equipped with Thunderbolt connection.
Pros: Compact, Easy To Manage, Easy To Set Up, Highly Compatible
Summary: Got this for Christmas 2015. Couldn't be happier. A little pricey, so I asked for (and received) a ReFurb from WD website. No problems what-so-ever. I migrated my iTunes and iMovie library from my Mac in minutes (versus HOURS via USB 2.0/3.0).