Yes, the usual nitpick about tax-funded services applies here. It's not actually free, as in it doesn't come from the sky, but if you pay your taxes you're covered, which means that A) you WILL have the service when you need it, with zero cost at the moment of purchase (that is the key here: no headaches related to money, no loans necessary, etc), and B) average Joe pays less in taxes than what he would spend if national healthcare was provided, since when it is not, the high entry barrier allows the development of a price-raising oligopoly.

I guess that it's a matter of opinion, but personally, looking at the state of healthcare in the USA, I'm quite glad I live in Europe.