There are plenty of digestible summaries of the ACA online[0]. I think it has some things that are very beneficial to the American population, like (trying) to raise Medicaid and offering subsidies for those just above the Medicaid cut-off. Also barring insurers from providing coverage for those with pre-existing conditions[1] and barring lifetime limits.

Not saying the ACA is flawless, but I'm not confident that Trump and the GOP are going to improve the situation in the long-term. ("cutting the red tape at the FDA" might help a bit, though) It's still not clear exactly what actions they will take.

[0]http://kff.org/health-reform/fact-sheet/summary-of-the-affor... [1]http://kff.org/health-reform/fact-sheet/obamacare-and-you-if...