YMMV. March 2016.
Can walk with mochilla to 3 supermarkets, many hardware stores, decent carnicerías, verdulerías, botillerías, specialized almances, weekly feria, FONASA, 1 private medical center, 2 public medical centers and sometimes if I'm up for it, to or from central San Antonio/fish market/other supermarkets. 500 pesos colectivo into town, 350 pesos micro into town, 2500-3000 pesos taxi or radio taxi for the same distance, price varies for the previous for Santo Domingo or up to Algarrobo/Mirasol.
VTR double pack (TV/Internet)
$39.400 (slowly ratchets up every couple of months)
Uncovered medical expenses?
No recent experience here. My favorite dentist and eye doctor are in the States and part of the itinerary on my once a year trips. Never had an emergency, semi-emergency, or chronic condition attended to inside Chile since I moved to the coast from Santiago but that may change since I recently began paying into FONASA. My strategy is to no longer pay for a catastrophic international expat policy and to go with FONASA for Chile, free Obamacare till the system changes or collapses in the States and contract World Nomads when I visit other countries.
Overall average cost of living (Chile-side only) at 675 CLP/1 USD for two thrifty but quality-oriented persons, in a Chile upper mid-class controlled access condo with a pleasant view, drinkers on a paleo leaning diet --- $960 USD/month.
Generally, just a SPAM KILLER. You are on your own in this forum. My personal mission here is done.
BUT when necessary, by way of ridicule and truth revelation we shalt do war.