While they regard it as the most critical issue in the nation, U.S. workers rate the health care system poorly, according to a new study by the Employee Benefit Research Institute and Greenwald & Associates.

But they also say they’re highly satisfied with their own health plans. That doesn’t mean they’re happy about the cost, though; just 22 percent are extremely or very satisfied with the cost of their health insurance plan, and only 18 percent are satisfied with the costs of health care services not covered by insurance.

Also, 48 percent of workers say they’ve experienced an increase in health care costs in the past year, about the same percentage as in 2016 and 2015, but down from 61 percent in 2013.