Pros: I bought 2 of these from a local store, they worked great out of the box and were pretty quick.
Cons: One of the two currently works okay, however the other is dying with read/write errors and bad sectors. I'm currently working on getting everything off the drive as I write this. I didn't think I'd be trying to recover files from my backup drive so soon. They have both experienced intermittent connectivity issues from about the 1yr mark. I'd blame the ASUS board but I've had these on 3 different computers and they've done the same thing. Just randomly disappear.
Summary: This drive offers encryption. Great. But because it would be too much trouble to encrypt a drive with data already on it they always encrypt the data even if you tell it not to. The data is essentially encrypted with an empty password that still cannot be decrypted without the USB to SATA board that does the encryption. If that board goes you cannot get your data back by removing the interface and putting the drive on a SATA controller because it is encrypted.
Summary: Hooked it up, everything went fine until day three and it's been a constant, "usb device not recognized." I'm pretty computer savvy, but after many tries, nothing. WD service had little advice to help me. I would return it but unfortunately I paid cash and can't find my receipt. I have two Seagate's and have had no problems with them. Unfortunate choice and although I keep receipts, this one isn't to be found. I can't give this any rating because it's not working.