I have four of the H0 Challenger and one BigBoy, from Athearn. They pull very good and run very well. Using 30 inch radius they just glide around. The engines are mechanically made good , but I have changed the decoders in all 5 engines. Put in Tsunamis insread.
Two of the orginal MRC decoders just died. Got an new one from Athearn for the first one, but when running, the sounds live its own life. Sometimes when running at speed, the conductor calling, All aboard, in an freight train . I could not program it to quit. That was the time I change all decoders to Tsunami. Decoders I can both program and read back.
The engines are still worth the money.
Two of the orginal MRC decoders just died. Got an new one from Athearn for the first one, but when running, the sounds live its own life. Sometimes when running at speed, the conductor calling, All aboard, in an freight train . I could not program it to quit. That was the time I change all decoders to Tsunami. Decoders I can both program and read back.
The engines are still worth the money.