Coincidentally, I actually saw one today, a friend has it. Bought from that same site a few months ago.
It's a real fluke or a seriously good copy, but the construction feels weaker/lower grade. It somehow feels more "hollow", like the plastic is thinner or not braced from the inside. It's difficult to describe, but it doesn't have that rock solid feel you get from flukes usually. It doesn't feel dirt cheap like those yellow no-brand ones either though.
Apart from that it works perfectly. It didn't have the auto power-down mine has, which is a shame as it greatly improves battery life.