I only had 1 orange box fail. It would start the car once and only once unless you disconnected the wiring harness from it and then Reinstall It. Then it would start the engine once and only once again. I was refunded my money!
Went to the chrome box after that. Zero failures.
Last count for the MSD failures was 12. The only one that works has been working approximately 28 years. I think the aluminum housing is about to oxides through.