I got this, was disappointed, the wireless controller has to be pretty close to the receiver, and even then you had to keep your aim towards it pretty right on, you could move a bit but if you went to far off it stopped working. Worst of all when I press the jump button 10 times it would only work 8 or 9 times out of 10. I don't think the controller button was defective I think the signal was just being cut out once and awhile. Now it could be that mine happens to be a defect or broken and that it is rare, I just am telling what happened with mine.
Anyways I am sending it back, I told them I would trade for the wired one, if they cover the shipping, and we will see how this unfolds.
Hope that helps.