Mass is working very well. Thousands have been insured and now get health care that could not before it was implemented. You might listen to Mass ex-gov. Mitt Romney, who has spoken for years on how well it's worked in detail, and how it's a model for the entire country to follow.
If there are problems that develop, you change your laws to adjust to them as it goes. Here's a good discussion of the pros and cons of the Mass law
http://www.startribune.com/lifestyle...161248535.html