Summary: Most of these drives are used, but working. I ordered two drives and both had over a year of power on time. Both had over 5 TB written to them. You could argue these drives are lightly used and good enough for the price, but beware if you really wanted a new drive.
Summary: The cost per GB is definitely nothing to write home about, but the drive is fast, quiet, and so far, rock solid. You do need a SAS controller in your system to use this drive; the serial drive interface connectors on most motherboards are SATA and they will not work with this drive.