The law was designed so that about 80 to 85% of Americans weren't affected. So, it's not surprising that you haven't met anyone who has had problems due to Obamacare. I've already given my story below on one of our doctors. There are other people who now have to pay more out of pocket than prior to the law for the same or less coverage, as seen in the linked article...

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Ginger Chapman and her husband, Doug, are sitting on the health care cliff.

Doug and Ginger Chapman with their son Charlie Galanes, 11. They are looking for new coverage after their plan was canceled.
The cheapest insurance plan they can find through the new federal marketplace in New Hampshire will cost their family of four about $1,000 a month, 12 percent of their annual income of around $100,000 and more than they have ever paid before.

Even more striking, for the Chapmans, is this fact: If they made just a few thousand dollars less a year — below $94,200 — their costs would be cut in half, because a family like theirs could qualify for federal subsidies.

The Chapmans acknowledge that they are better off than many people, but they represent a little-understood reality of the Affordable Care Act. While the act clearly benefits those at the low end of the income scale — and rich people can continue to afford even the most generous plans — people like the Chapmans are caught in the uncomfortable middle: not poor enough for help, but not rich enough to be indifferent to cost.

“We are just right over that line,” said Ms. Chapman, who is 54 and does administrative work for a small wealth management firm. Because their plan is being canceled, she is looking for new coverage for her family, which includes Mr. Chapman, 55, a retired fireman who works on a friend’s farm, and her two sons. “That’s an insane amount of money,” she said of their new premium. “How are you supposed to pay that?”
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So, their original plan pre-ACA was canceled, and now they have to spend a lot more to get insurance because the subsidies don't help them. As I mentioned below, the ACA was designed so that some are helped, and some are hurt. There was no other way to do it, other than full-blown single payer, which aint gonna happen.

And no, I don't want to repeal the ACA, as it's politically impossible. It would be better just to tweak a few items and make it better or less objectionable. There are some people who were better off prior to the law (such as middle-class people who now have to pay more than 10% of the income for insurance where previously they did not), and some who are better off now (such as the poor and previously uninsured).