Unfortunately, unless one lives there, most think this system works for other, smaller countries. My son lived in Denmark for about a year - they have single payer, and even though he is against it here in the U.S., he said it works rather well there due to the smaller population.
Having the Single Payer changes your whole mindset about your medical care. Being able to change your doctor if you don’t like him is MUCH, MUCH easier than it is in Canada. This affects how the doctors and the patients treat each other.
We met a guy from Denmark at a Las Vegas show and he said the income tax there is 45% (quickly graduates to that) and the sales tax is 24%. They better have good health care at that level of taxation.