Summary: I've always been pretty happy with WD but I have a Hitachi 1tb I bought for cheap 7 years ago in the same system and it works fine to this day. Been reading a lot how WD is slipping. Time to move on I guess. Sad.
Pros: Was pretty quick when it worked.
Cons: Has always been really noisy. Died just after 2 years. Had about 1100mb loaded on there from video, music, games, family photos etc. All gone. Got pretty noisy, then slow then dead all in one day. Tried to recover what I could. No luck. :(
Summary: I know all HHDs/manufacturers have a certain number of failures. Had a Seagate die young 10 years ago. So this does not condemn WD. But it does rankle, especially when it is a medium capacity, supposedly higher-level HD like this.
Pros: Fast; other one I bought works fine.
Cons: Bought two in November 2013. One just died, May, 2015. Light use (backup).
Summary: I suspect the drive never spins down which I'm sure increases power consumption and wear and tear on the drive.
Pros: Worked great, no problems installing or using drive. Quite fast with great response times and data speeds. Never had any issues with heat or noise. (But then again my computer was somewhat noisy to begin with so this drive might've gotten lost in the background noise)
Cons: Died after 2 years of faithful service. (computer was almost never off) WD promptly RMA'ed me a replacement.
Summary: Works as advertised. Kinda noisy though. I don't know if that's typical for large drives like this but when I first got it, it took a long time to "wind up". Sounded like a dvd drive. I thought about sending it back but so far it's been working fine with no hiccups. It has since quieted down too.