Yeah, like broken1i said....their were complaints of slow write speeds, defective (I know every company has lemons), and alot of "you get what you pay for reviews)...
This isnt that much cheaper than the sandisk at $77. I know its class 4, but it most likely wouldnt be much faster than the sandisk, since slower class sandisk cards usually outpace faster no name cards, so
There isnt a terrible amount of reviews, and most were from flash drives, but their were definitely more negative than positive, and gave me an overall vibe that the company makes cheap products that I would be weary of.