So the premiums are not too different between US and Germany. The two advantages I see with Germany is the premiums are proportional to income and likely costs of procedures and medications are better negotiated by the government. Do you have to deal with copay (a small amount you pay per procedure)?
If you are curious about US insurance plans, here is California website for estimating insurance costs. Basically the costs scale with income, number of individuals and their age and their desired level of coverage.