Whenever I hear "It's just as good as the such and such" or when the "such and such" gets "knocked off" I always want to go look at the real thing. The fact that the Wyndstars got knocked off pretty much says that they must be a good product. I have two of them and am going to order two more to replace a couple of old "dinosaurs". You'll have to decide if the lower price is worth taking a chance on the copy.
Remember, the bitterness of poor quality remains long after the sweetness of the low price is gone.