The Affordable Care Act isn't real popular with Americans, according to a survey from

The report found that only 28 percent of those surveyed believe the ACA has had a mostly positive impact.

"The conclusion that we make is that the other 70 percent or so are questioning whether the law has been worth it," said's Doug Whiteman.

Negative feelings seem to increase with household income. Those making less than $30,000 a year had the most positive feelings about the law.

"I think that suggests that maybe more of the poor may be recognizing that the law is helping them."

About one in four Americans with employer-sponsored health insurance say they are more likely to retire early or otherwise leave their jobs due to the ACA. That is almost three times as many as the eight percent who are less likely to move on. People with annual household income between $50,000 and $75,000 are the most likely to quit.

"I think that suggests that we may indeed see lots of people looking into new options for their lives if they don't have to stay locked to a job for the health insurance," said Whiteman.

The report also found that the percentage of Americans without health insurance has fallen to 11%, the lowest since it began surveying on the question in August 2013.

The survey was conducted by Princeton Survey Research Associates International.