One provision of the Senate's health care bill stands to be quite popular: the Better Care Reconciliation Act would eliminate the Affordable Care Act's individual mandate. That would be repealed immediately.
Another would likely please the Republican base: defunding Planned Parenthood for a year. Those funds would disappear right away, too.
Another would threaten health care coverage for millions of Americans: a rollback to the Medicaid expansion. That change wouldn't start until 2021.