Loco arrived yesterday! Nice looking loco, super details and decent paint. Sound is average, not nearly as decent as a Tsunami and given the fact that they squeezed a speaker into such a tiny loco makes it understandable.
One niggle is that the loco jumps at a certain speed. First thought it was dirty track or wheels but after cleaning its the same. Also dont think its wiring as it would jump at all speeds. A bit disappointing....

I have not yet run it in.
Anyone else experience similar problems? Any ideas? Is it a dud and should I send it back? Or should I rather run it in and then see?