For 75 million Americans who get their insurance through large companies, the Affordable Care Act is a mixed bag. Experts tell NBC News the new healthcare law is only slightly increasing premiums next year, but causing some companies with the most generous plans to reduce their employees' benefits.

Aaron Baker, 36, his wife Billie and their two young children are covered under a generous health insurance plan offered by the private Midwestern university where he's worked for 10 years. When they opened their benefits notice this year, they were pleased to see their $385 premium is only up by four dollars next year. However, they were shocked to discover that instead of covering the first dollar they spend with no deductible, the Baker's plan now includes a $1,000 deductible and a $2,500 out of pocket maximum. They also will still have small co-pays for services.