It all depends on what the meaning of the word "work" is.
If you mean, its purpose was to run the health carriers out of business by destroying the concept of insurance, and their ability to do business and make a meager profit; then it "works" perfectly.
If you mean does it "work" to provide millions of Americans with high quality affordable health insurance (ACA).....not so much.
Clarification is always good for the soul! Thanks buddy!