I am an employer and am working my butt off to provide affordable health coverage for my employees.
That's great and good luck.
Employer-provided health insurance plans have been increasing in cost for years - well before the ACA. Overall, the cost increases have been less since the ACA passed (but not necessarily because of it).
This article highlights the trend of employers to pass along more of the cost to employees by offering higher deductibles, etc. Are you having to do this in your business?