I think these threads about memory cards are funny. If you have ever built a computer then you know that memory has to be matched to the hardware to work well (or at all). Cameras, readers and computers are the same for memory cards. Some combinations work and some don't. It usually has nothing to do with the brand but more to do with the combination or even the memory card batch.
If you ask people if they have had issues with X brand of memory cards you will always get those who say yes and those who say no. But maybe you have carpet in your computer room instead of tile. Or maybe you drop your cards more often than others. Or maybe your humidity is higher where you live. All of these factors can contribute to failed cards and some brands and models of cards might be better than others.
Also, what firmware is your camera running? Is it different than those who have not had issues? Are you running two cards at once (in a body that can do that)? Do you turn off your camera when it is reading the card (image coming up on display)?
I could go on and on and on about the different factors that can make a card fail for you but not your "pro" buddy. Buy some cards and try them. Buy some more and try them. And in a few years things will have changed so you will need to buy some different cards and try them too.
Not that it matters since you probably don't have the same camera, settings, reader, computer, computer room, shooting technique, location, shooting rate, cards from my batch, or fill your cards 100% like me, but I have over 10 Lexar 1000x 32 GB cards that have held hundreds of thousands of shots and I have not have one failure yet (Sandisk has failed me though).
-Remind me to copy and paste the next time we see a memory card thread.
(Not meant to sound like a rant, but it probably did.