Nearly 70% California's previously uninsured adults now have health insurance coverage, thanks to the Affordable Care Act. The latest survey of the Kaiser Family Foundation has revealed that many of them are happy with their health care needs being taken care of properly.

However, it also turned out from the survey released Thursday by the Menlo Park-based group that there were troubles faced by many newly insured when they tried to pay and access care.

The state's health insurance exchange was established under the Affordable Care Act. And Medi-Cal is the state program for the low-income and disabled; it saw a great expansion under the health care law. The problems were seen in both.

Some consumer health advocates did not find the result of the survey as surprising.

"We have a long way to go towards affordability when half of the newly insured say they have a hard time affording health care, even as subsidies have been successful in expanding access and getting more low-income Californians insured", said Carmen Balber, executive director of the Santa Monica-based Consumer Watchdog.

However, many health care experts have welcomed the latest data. Mollyann Brodie, director of public opinion and survey research at the foundation, said the latest data is strong evidence that people's sense of financial security and health care have improved to a great extent.

However, both the exchange and Medi-Cal have had problems, including for the narrow networks of doctors and hospitals. Access to Medi-Cal doctors is also a big problem and it exacerbated with the expanded number of Medi-Cal enrollees.