Summary: I only use WD hard drives after considerable experience with other drives. I find WD to be the most reliable and I'm sticking with them. I have never had a problem with WD hard drives. I have 10 of these each 2TB in my system, 2 Black, 2 Red and the rest are Green and they have been working great after more than a year in service, The Blacks I have had for less than four months and the only difference I have noticed is the Black are 7200 RPM and run hotter than the 5400...
Summary: Stable, fast. Some people said in their review worry me a bit before I buy it. But after I installed everything find it's not as what they said, maybe a little noise, and thats common for each drive.
Summary: I'm quite satisfied with the drive. It's installed in an external enclosure and connected to my computer using a USB 3.0 interface. I'm using it to store my photgraphs that I had been maintaining on the internal drive. I haven't detected any loss of speed in loading a folder of photos. I didn't run any speed tests, but I would guess that file access has improved, since USB 3.0 is not the bottleneck.
Summary: I remember reading a lot of reviews on this hard drive and similar products because it was hugely important that I get the right one. The budget was tight and I needed a second back-up option for my main computer. I edit video professionally on this computer and I needed a clone drive in case the worst happened (i.e. main HDD crashes in the middle of a job). Long story short, this hard drive lives up to expectation.