Mark Twain
This card had rave reviews, so I decided to get it to use it with my new GoPro Hero3 camera.  I liked that it had a high capacity and it was class 10 which would allow me to maximize the features of my camera.  As soon as it arrived I popped it in to the camera for a quick test run and after it was successful I then packed it in my luggage for a snorkeling trip.  3 days into taking awesome footage with my camera this SD card started resulting in SD card errors which made my data unrecoverable.  Fortunately I still had some time in my trip to go get a different memory card with better reliability. These memory cards appear to be hit or miss, and in my case it was a miss.  I can not recommend this card for purchase.  It appears that this company has a problem with the Quality Control process, and you can see that reviews are either overwhelmingly positive or as is my case, 1 star/negative.  It looks as though they just accept a certain amount of faulty memory cards.  Unfortunately for me, I missed the window to return this card because I was travelling, and I am stuck with a useless micro SD card.  I've had better luck with Kingston, and Transcend brands. Lexar and Samsung have also served me well in the past.  I will no longer purchase any other SanDisk products and I wouldn't recommend that you would either, but if your are swayed by the reviews, make sure you thoroughly test what you purchase before you actually need it.