I find it insane someone from corporate doesn't think 10-20% downtime on a product they make heavy profits from isn't a big deal. And yes I know McDonald's is a real estate company and the franchise owners are the ones losing money etc. but still.
I used mcbroken three times. Each time it said the machine was working but the workers told me otherwise. The site continued saying it was working until they closed. :(
Unfortunately it doesn't work if the restaurant doesn't update their pos system. There's a few false-positives but I haven't heard of any false-negatives.