All information about the Western Digital WD20EADS hard disk drive: technical parameters, failure symptoms, free asked questions, reviews, HDD repair and data recovery. But to answer your question, I've not found WD20EARS any less reliable/prone to failure than any other 2TBs.
Here are the key bullet points from their press release. then the behavior is pretty much expected on this model drive upon failure. Initially i did have issue with the WD20EARS, i was getting ATA errors. Most suppliers stock the WD20EZRX Caviar Green hard drive which I hear is a later model. Wd20ears failure SMART Status: PASS Test Result: FAIL Test.