Progressive Era labor issues included unsafe working environments, terrible hours, and unchecked child labor.
Many benefits were gained through the efforts of reformers in that era, including child labor bans, the Federal Department of Labor's creation, workplace condition regulations, and more.
Immigration grew in America during the Progressive Era, and views towards the growth were typically negative. Many restrictions were placed on immigrations during this time.
Prior to this, women did not have these rights or aspects of equality--though they still didn't get a perfect solution.
During the Progressive Era, large numbers of women were trying for more rights, such as the ability to vote. They also worked towards equality in the workplace and began working a higher number of industrial jobs.
There were many issues in the ways that the government handled the economy and the businesses operating within, but changes made by and to the government helped to alleviate a number of those issues.
In order to curb crime, poor health, and other problems set forth by the consumption of alcohol, the government outright banned its sale during the progressive era. It was eventually undone, though, as the people were unhappy with the change, and the sale and consumption of alcohol continued regardless--just illegally.
The muckrakers were writers--journalists, usually--who wrote about the problems facing the society they lived within. This served the purpose of spreading awareness to the issues that faced America at the time, which in turn lead to reforms to fix those problems.