You are encouraged to read the actual New York Health Act, but it is 30 pages of legalese. I do suggest that you at least look at it, and read a few parts. You can see the entire actual Act which has been approved by the NY Assembly and is one vote short of passing the NY Senate. Clickhereto go to the text of the New York Health Act which contains the official summary.
A 2015 study by UMass/Amherst Economics Department, documents the New York Health Act will bring $45 billion net savings to families, businesses, and taxpayers. The study details that 98% of households would pay less for health care than they do now. Read the summary or the full study. Click here for an hour long video presenting the findings.
A recent 2018 study by the Rand Corporation showed health care payments would decrease among most residents and would increase among the highest-income residents under the New York Health Act. Click here to see a review of this study.
A study by the ultra right Mercatus Center, funded by the Kock Brothers, came to a similar conclusion but headlined their report on only the high costs of health care. They buried in their report that the expected costs of single payer heath care systems would not exceed the current costs, and may be less. To see a short video of Bernie Sanders "thanking them" click here.