My wife works for a family practice doing billing. She has seen many times that Obamacare wont pay for certain things or specialists that traditional insurances do and it can put you at the bottom of a clinics list to be seen because the clinic doesn't want to deal with it. Some places that can stay as busy as they want ( meaning the goods ones) without taking Obamacare won't see you if you have it.
Heard an Interview with a back surgeon from Canada saying he had a year and a half waiting list. The interviewer said maybe he should become a back surgeon and get rich. The surgeon said it doesn't work that way because the government will only pay for so many back surgeries in the country per month so the number of people needing them was irrelevant.