Have been using it for about 1 year without problems.

Billed as the world's fastest SD cards, the recently released SanDisk Extreme PRO SDHC/SDXC UHS-II memory card series uses the latest high-performance SD specification, UHS-II, to offer up to 280MB/s (1867X) read transfer speeds for optimized post production workflows and up to 250MB/s (1667X) write...

I always use SanDisk memory for all my gadget data storage and never had any complain. The access time or data transfer is quite fast, more than average of other memory. Price might be slightly higher, but for performance it's not a problem.