What has your transition to Authorea been like?

I find Authorea to be extremely useful for collaborations. I have all my students begin their paper drafts on Authorea. It allows me to keep up with their progress, add comments, and contribute text without interfering with ongoing changes.
Astronomy papers are generally written in LaTeX, which is a programming language for producing documents. Authorea hides some of the complexity of the programming, which allows my undergraduate students to start writing about their work immediately and then gradually learn more LaTeX over time.