This is my second set of these exact same cards. I use them in pairs for simultaneous backup of both stills and video on my Fujifilm GFX 50S and X-H1 and have never had an issue with them. With a v60 rating, they’re fast enough for everything I do and have never become a bottleneck, even on the GFX with its large, uncompressed RAW files or on the X-H1 when shooting 4K. And someday, if I ever do run into a card issue, I’m confident ProGrade will be there to sort it out for me.
Finally, if you don’t need the extra speed provided by the platinum series cards, the gold series are excellent value. I would rather save money than have speed I can’t use and apply the funds toward bi-annual card replacement/cycling to reduce the chances of card failure.