Pros: My card came today nicely packaged in one of those indestructible containers from the manufacturer. After destroying the package I popped in in my Samsung Galaxy Player 5.0 and it works just fine. When in the player it only gets around 5 mbps write and about 15 read during actual transfers. I was thinking I got a dud until I popped it into the included adapter and plugged it into my laptop. In there I was getting the advertised speeds of 10-12 mbs write and 22-24 mbs read when actually transferring files. I downloaded crystal mark [...] and ran it through 3 tests and they all passed with similar speeds.
Cons: In my mobile device it doesn't perform at advertised speeds, not sure if its an issue with my device or usb, but it does perform when plugged directly into the SD adapter on my laptop.
Other thoughts: My order was fulfilled through Amazon and was definetly new and authentic. Its amazing that there is 32GBs in such a tiny chip.
Here are my benchmarks. The second is in my galaxy player with it plugged into a usb 3.0 port on my laptop so a little faster.