Summary: In short there are bigger cards, faster cards, and cheaper cards, but this one is at the best "bang for buck" category. I have two, the one I recently purchased and one I've had for a year and a half. In general the buffer on my camera (D700) stalls out before the card does. Shooting the way I normally do, which is full size Jpeg and Raw I get about 950 shots at a time. For Jpeg only I'm over twice that at 2,000 pictures.
Summary: I bought this card as a replacement for the hard drive in my iPod Mini. It has been performing admirably so far - it's fast, less of a drain on the battery, and because it is one of the few CompactFlash cards that are fully ATA compliant, it works perfectly with the Mini. A great price ($99) at the time of purchase, Transcend has definitely made me a future customer when I'll be looking to upgrade in the future.