I would never, willingly, have an HMO.
My bias, in part, stems from growing up around doctors (familily and their friends) who universally HATED the HMO system. Hundreds, if not thousands of time, I had to listen to them be FURIOUS about patients who were recieving substandard care FROM THEM, because they were HMO'd and the insurance company wouldn't allow them to treat their patients as they needed to be.
My bias, in part, also stems from working in healthcare... and seeing the exact same things.
My bias, in part, also stems from there being 2 HMO choices in our area. GroupDeath & Po'People'sPlan (state insurance option which only covers bottom of the barrel minute clinics). GroupDeath I won't even go into (shudder) but I find it soap box worthy INFURIATING that about half of our poor are given this AWFUL HMO insurance plan where their kids' eyes are being glued shut, medications mismanaged, simple illnesses allowed to progress onto lifethreatening conditions... becuase the only providers covered are these fly-by-night med-school-dropout sanctioned-and-can't-even-get-a-job-at-group-death "doctors" (most aren't doctors... there's rarely even one real doctor per clinic, I'm not joking that most are staffed by med school dropouts). When GroupDeath is the BETTER option, the world is on it's head.