Summary: Good SD card, works, and is a great price.
Pros: I've bought multiple Transcend SD cards over time and they always worked great. Got this to replace the one in my camcorder that died. Just ordered the 16 gb version for my new Android phone. It comes with the adapter so I can use standard SD card slot size with my camcorder and laptop, and use the micro without the adapter with my phone. These cards are cheap, but not cheap quality.
Cons: Only class 6... but does that really matter? Don't think you're going to notice a difference quite honestly. Class 10 is higher write speed but I'm using this in my camcorder recording 720p video at 60fps and it makes no difference. Maybe it might matter for 1080p at 60fps, but I can't verify that.
Summary: i felt remorse, next time im going to get a 32GB one!
Pros: got it for a really good price ($6.99) and as soon as i slapped it on the cellphone, it picked it up in like 1 second, decent read/write speeds, came with a Regular size SD adapter and its just perfect. the delivery was fast too.
Pros: I purchased this card ~2 years ago. I've had it in two phones, and it's never missed a beat. I don't know the specs on the classes that well, but I can watch stored 720p videos from it on my Atrix HD. The only mishap was when I accedentally removed it without unmounting and the card was wiped clean, but that was my fault.