The part that worked for me was the approval screen on a week when one busy director kept holding up a campaign post. I could open the thread and understand why it was stuck without asking the marketing person to resend anything. that sounds basic, but basic is exactly what I want when a deadline is already tight.
From a project manager view, the system reduces ambiguity. It does not magically make people respond faster. It makes the next action visible enough that I can nudge the right person, with the right context attached, which is usually the difference between calm follow-up and messy status chasing. The interface has some extra polish I do not personally need, but the approval trail stayed readable when the review dragged into Friday afternoon, where it matters. I also liked that the late comment did not disappear after someone marked it resolved.