A warning about Evans Waterless Coolants

I have used it for years and so do other guys I know in old liquid cooled motor cycles. The main reason is that it does not damage the aluminum and magnesium cases and water pumps, Honda CR motocross bikes from the mid 80's often have the entire cooling system destroyed by running water in them.
Evans is also great in a bike that is ridden at slow speeds as it does not boil over......the stuff has been around for at least 20 years as far as I know and I never heard anybody who actually used it say a bad thing about it accept cost.