I'm not aware of anyone, from any political background, who thinks the US system is anything above "pretty crappy". I've heard some people express positive sentiments regarding small parts of the system -- the quality of certain types of care, for example -- but never for the system as a whole.
The primary disagreements I'm aware of concern how to fix the current worst-of-both-worlds system. Do we put it entirely in government hands? Do we enact more regulations to try to force down costs? Do we remove or relax regulations that appear to drive up costs? How do we create transparency in pricing? How do we respond to innovative groups like Qliance? How should we balance the role of government, individuals, families, employers, and charity in health care?
Do not mistake disagreement on how to answer those questions as support for the current system.