Summary: Have a 5 yr old WD Drive with client art files, and the 1.5TB is perfect for a secondary backup (just in case) The Software is greatly improved over the older version, much easier to navigate. And even though this machine is USB 2, the speed was acceptable.
Pros: I love this drive, good performance overall. Pardon my lazy review but I only had this bad boy over a month and don't use it for more than tech work. It has a few quirks but overall the size amazes me. It fits in your pocket and is ready to go with only a usb 3 cable necessary.
Cons: One big issue is how the usb3 cable is spotty when you move the drive once plugged in, windows will act like it stopped seeing the drive, then seeing it, then not. But it seems to do it off and on with only my pc on the usb3 ports. However the usb 2 ports work flawlessly. It may just be an issue with my drivers. I run an amd platform and the drivers sometimes don't symc up right all the time.
Summary: Ordered this WD portable drive on advice of my son who is a real techie. He has one of these and is very pleased with its quality and included backup software. Would recommend highly. Some of the retail outlet drives come with a travel pouch. This retail package did not contain a pouch, which is really is not needed considering the good materials and construction of the drive.