As someone who opposed the ACA, I would say that it is a huge failure because it did nothing to stop the increase of premiums to stratospheric levels. Today, I am paying nearly $700 per month for a family of three to have a policy with a $4000 per person, $8000 per family deductible, plus co-insurance.
That's right: I must pay over $12,000 in premiums and deductibles before my insurance will cover a single penny of my health expenditures, and my "patient responsibility" can reach up to $20,000 per year with co-insurance added on.
I wrote a bit about what I think is the best solution to the problem. You can see my remarks here: http://danielsadventure.info/P...
TL;DR; PPACA isn't working to make healthcare because it doesn't address the fact that unethical companies are charging inflated prices for healthcare products and services.