When I started working for my former employer, my managers told me what a bad company we were working for. Other people told me that we use very poor tools to do our job and that the company doesn't really care about us. At the very least I found this demoralizing. 

A friend recommended to ask during an interview "do people like their job?" and I think this could weed out some bad environments. However, I'm not sure how I can word this better so that I get the results I'm looking for, which is to screen out the bad work environments. How can I find out if people enjoy working for the company from the interview experience?