Material Design for enterprise apps [closed]

I'm about to start a redesign project for an enterprise web application that's used in call centres, and we're planning to use Material Design for the project.

If you have done (or are currently doing) a similar project, then can you please share details of:

  1. Any deviations you've made from Google's guidelines and why you did so?
  2. What you'd do differently if you had your time again?

Thanks for your help.