Back in September, I received a 240GB SSD for my 2012 MacBook Air. It arrived dead and unusable. I sent them that drive back, and they said that it was very unusual what happened. The replacement that they sent me worked without a problem, up until about 30 minutes ago. I was browsing Twitter via Tweetbot and watching a video via VLC. First, the video froze. Next, I wasn't able to interact with anything on the screen. Lastly, the cursor wouldn't move. All of this happened within a few seconds of each other. Upon reboot, I received the flashing folder with the question mark. Holding ALT while powering up results in no drives/partitions detected. When I booted from my Mac OS X installation USB drive, it didn't detect any sign of a SATA drive from within Disk Utility or anywhere else. I popped in my original/stock 120GB Apple SSD, the one that came with the Air, and it booted up without a problem. Unfortunately, it hasn't been used since September, and I [stupidly] haven't made a backup since then, so I have quite a bit of work to do to get things back to the way I just had them. Fortunately, a lot of my data is scattered around various clouds, so I mainly just need to install the various software updates that have occurred over the past 3 months. So, based on my experience, I would advise everyone to stay away from OWC. While people may have their own success stories, I definitely have none, and I've heard about more failures from OWC drives than many of their competitors.