I have purchased two of these drives from Best Buy in the 5TB size. I highly recommend that one use Seagate's SeaTools to test/burn-in this drive before committing any non-redundant data to it. When you get it home, Google "SeaTools," download and install the program, and under the "Basic Test" menu run a "Short Drive Self-Test." If this passes, run the "Short Generic" test, then the "Long Generic." The short doesn't take long, but the long test takes about 2 days (44+ hours) to run on a USB 3.0 port according to my experience. This is where my first drive failed after passing the first two tests. The "Fix All" options would not complete (fast is a reallocation of bad sectors and long is a full surface scan), and the drive would fail in the middle of copying data. I returned it, and Best Buy exchanged it for another off the shelf no question asked. This is exactly why I do not buy the same thing for a lower price online. Short of an additional trip to the store (which I don't mind at all), the hassle factor is low and Best Buy's value added service is worth the extra money in my opinion. Anyway, the replacement passed all the tests and has been working fine since - as has the second one I bought when the first filled up. I am now ready for my third. One other thing. These drive enclosures are not really designed well (function follows form) and do not dissipate heat effectively in their native position with the blue side down. The only vents in this model are in the rear where the cables plug in and on the bottom (blue) side, and since the enclosure is fanless, it relies on conduction with the aluminum ESD/Heat shield and convection with the environment to transfer heat. It follows then that the best position for this enclosure - short of heroic efforts to ventilate it - is standing it up on end with the cables facing up toward the ceiling and putting it as low to the floor as is reasonable. My tests have shown that temperatures are lower (8-10 degrees Fahrenheit) in this position than they are while laying flat as was intended. You can check this yourself via the "Drive Information" option also located under the "Basic Test" menu option in SeaTools. In conclusion, it is my opinion that this disk+enclosure is as good as it gets off-the-shelf and in this price range as long as you take some simple precautions by reducing your risks with pre-testing, environmental temperature control, and redundancy - meaning test the drive before you put data on it, keep it cool, and don't put data that you cannot afford to lose on just one drive. 5 stars for a great product minus 1 star for the uncertainty of a DOA or premature failure after my experience of a 33% (1-in-3) failure rate.