> It is only emergency rooms where I don't get a choice - if you need an emergency room close is important.

i feel like the folks on here peddling this line have not ever spent any time watching who comes through an ER.

most of the people who go into an ER aren't dying, or screaming in pain. they've just got a problem that can't wait until urgent care opens up again in the morning. or they need something done that urgent cares aren't equipped to do (fancier diagnostic equipment; whatever). they've got plenty of time to consult with a hypothetical "find a cheap/good ER near me" app.