The View From An Iceberg
Badtux, the snarky penguin, has an easy to understand table comparing universal Medicare and the Hillary Clinton proposal [which is a re-packaged version of the plan Mitt Romney introduced in Massachusetts].
Have a look at RomneyHillaryCare vs. Medicare For All: A comparison, kick the tires.
The good news is that there is time to look at what’s happening in Massachusetts to see how this might work out.