powerful and perfect, Xbox360 controller?

[seyearly]

I want to buy a new controller Xbox, but I found a Xbox controller:
"I feel comfortable, powerful, absolute durable, very affordable, a perfect controller for Xbox"
http://www.Xboxcontroller.com/2-4GHz-Wirel...60-p-20803.html
but I do not know
This is a really good controller Xbox, or simply counterfeit goods