Depends on who you ask. Before Obamacare if your employer didn't pick a great insurance plan and you got seriously sick the insurance could cut you off after you hit a lifetime maximum and then future policies wouldn't cover that specific condition because it was considered pre-existing.

This happened to my parents in the 90s and we went through multiple lifetime maximums and had to pay hundreds of thousands of dollars over the course of 10 years.

Obamacare is great for making health insurance actually act like insurance.

Yeah, they forgot the cost part. It probably didn’t help that the republicans did whatever they could do to kill ACA instead of trying to improve it.

People on individual market with no subsidies (making over, say $50k) got absolutely raped by the ACA. It's great that many uninsured got insurance, but many people like myself spent years uninsured post-ACA because the cost was higher than a mortgage payment with absolutely zero realized benefit until the massively high deductible was met. People who couldn't afford this were then charged thousands by the IRS as a penalty with zero benefit. I find myself not a fan of it from a policy perspective. Didn't like the way it was passed, written, or implemented. Some good effects, but truly bad effects as well. Scrapping the mandate was beneficial for people in my position (starting businesses), but still the healthcare system in the US is a train wreck. It's neither a free market system nor a public system. It is fundamentally broken unless you are an employee of a larger corporation that offers benefits.