Hoon Ik Cho
I've had this memory card for about 4 days. I ordered it with my new Galaxy S4 Verizon. Worked perfectly out of the box, didn't have to format, and read & write speeds meets up to my expectations. I will still keep my eyes on this card for little longer because I see some reviews reporting that cards fail after some time, but seems to be ok for me.Not relevant to this product, but I did get ONTRAC shipping(Amazon prime 2 day shipping) for this memory card and my Galaxy S4. After reading SO many negative reviews and feedback about this shipping company, I was crossing my fingers and hoping that they wouldn't do something stupid to my package. Fortunately, I got my package on time and nothing was damaged. One minor complain is that ONTRAC does not update their tracking history very often, or at all(based on my other purchases). As I was phoneless for couple days and really needed a phone, I checked the tracking history probably once every couple hours. It was showing that it has left the faculty for 2 1/2 days and was not updated at all until about an hour before I got my package saying that it went out for delivery on 9AM (I received my package around 5PM). Again, I got my package on time with no problem so I'm ok, but with the history of ONTRAC being so rubbish it just made me worry because I didn't wanted to be phoneless for 2-3 weeks.