Pros: - IntelliPower - 64MB cache - 3 year Warranty - Great price for Server-grade drive

Cons: None so far.

Overall Review: I bought three of these WD Red 1TB drives for a RAID5 configuration after months of research and waiting for the best prices. I have primarily used Desktop Seagate drives in my Home Server that acts as an HTTP/FTP/NAS/Squid/Dansguardian running CentOS and mdadm for over three years; some even with s.m.a.r.t. errors and bad sectors. The performance was terrible ( obviously, I do ask a lot from my servers ) and I decided it was time to upgrade. I pulled these puppies from their fairly well packaged boxes, let them adjust to ambient room temperature, and took pictures of the serial numbers. I immediately registered them with WD warranty website. After they had adjusted, I ran WD's bootdisk and did full scan's on each drive. It took about 8hrs for three drives. No problems at all. I already had a consumer drive running CentOS in my four port SATA so I installed the three RED's and built my RAID5 with mdadm and XFS filesystem. I chose XFS because it has customisations that are great for software RAID's, and performance was rated highly running on Linux. After that was complete, I set up samba and started backing up my data. At first my speeds were not so great, around 20MB/s. So I did some homework and found these options in my smb.conf that DOUBLED my speed: socket options = SO_RCVBUF=131072 SO_SNDBUF=131072 TCP_NODELAY WOW! Now we're cookin'! I get anywhere from 40-46MB/s write speed, and the same read speed over 1Gbps lan. Also, I compared my two servers side-by-side (same makes and models running same CentOS 6.3 and samba) and as I watched the drive led's during transfers from the old server to the new one, I noticed how much more the old drives had to work ( reads/writes ) compared to these RED's. My speculation the reason they didn't have to work as hard is the RED's have 64MB cache, spin at slower speeds with IntelliPower (about 5900rpm), and have less agressive head parking. It was pretty neat to watch my old drives work like dogs, and these new RED's didn't even break a sweat! I'm happy with their performance, the three year warranty, but I will have to update after three years on their durability. As of right now, I am a very happy customer! ~ J.S.