I have one and love it. And my engine starts right off the bat when I advance the throttle.
However, on mine the lead truck would rub against the cylinders when going through the 0-36 Fast Track provided in the set. I took it to a repair store and they modified the lead truck a little bit to provide some extra clearance room. However, just to be sure I now only run it on 0-48 Fast Track that I had to buy.