Real-time Results is a great start with Data Analyst/Data Scientist to read and analyze the data. Won't lie though it looks a bit overwhelming and took me a solid few months before i braved it and tried it. We messed up on our Exit and Bounce Rate metrics setup and it was able to let us change the page that we're measureming the the exit rate and bounce rate on it retroactively.

Being able to change the default stats engine settings is pretty cool as well. I haven't scratched the surface of other functionalities like setting up segments and running "Explore." I like the direction it's heading. I can see untrained Analysts, Product owners, and web developers easily reporting false results with the new power tools so I'd def steer that away from them but keep it for the trained Analysts.