Good alternative to other SD cards ...

.... Especially since the price has fallen by over 30% in late 2013. This is my 2nd card, the first is as a backup under LinuxMint for several months encrypted in use. It's amazing how much space is saved, where previously (a few years ago) about 16 DVDs were still needed.

Speed ​​default I achieve varying (depending on the file size), not superior values ​​on USB3 (around 25MB / s). But this is not critical for my application, so I do not use precise measurements.

For longevity is with certainty nothing else to say, just as much, which is the 1st since Nov 2013 deployment. Delivery and expiry exemplary! Super for my application is the size of approximately 18K EUR at the moment (October 2014)

Addendum 14102014:
A small, illustrated article with further information has been published on my blog [s. Comment]
Addendum 14032015:
2nd card is something muckig when transferring large amounts of data. Could be operating system related. Reformatting and encryption on Linux Mint no problems, but for whatever reason is not as "perfect" as the 1st, so a point deduction in my satisfaction.