Almot, my compliments to you regarding your sorting this out before the big-jump. And Moisheh points out some valid information so please cut some slack and separate personality issues from valid facts.
Mexico is ground Zero for hyperbole, exaggeration, and just plain B.S.
But for folks who live here or intend to retire here we need rock-solid information especially about health-care. When the heart is mis-firing, an oxygen mask is clamped onto your face and the siren screams unmercifully, it is not fun. Guaranteed no time to ponder innuendo and opinions posed as facts.
And it's about guaranteed sooner or later after retirement, an expat is going to need hospitalization, either here or in the USA. With full-blown AFIB I tortuously counted off each of the 32 stair steps on that ladder to the Alaska Air flight in Zihuatanejo. I had to pull myself up with my arms. The hostess and ground crew were watching carefully. Had I stumbled the game would have been all over. The hostess did drop an oxygen mask for me after I was seated, as cabin de-pressuring might have done me in. This occurred August 2010.