We only hear about the bad ones is very true. Of all the new 00 locos I purchased, well over 160 from most of the producers, only one didn't work straight out of the box, a J94, the gears didn't mesh, I had to put a spacer under one end of the motor. All gone now except for four I kept to display for personal reasons. Have got 10 new 0 gauge locos though, they all worked fine as well.