I have several of these controlling a small turntable welding table, ball feeder etc and they seem to work fine and have been working for a while. If I had one small problem it would be that in order to install the forward/reverse switch in a closed box with a faceplate you have to remove the shrink wrap around the switch so it fits snugly and remove and resolder the two wires coming from the switch. I usually just replace spade terminals anyway, but that's about the only improvement I can think of.
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