I've been using Adobe Captivate since before Adobe owned it. I think it was version 2 I cut my teeth on, and back then, it was a basic, yet clever system for capturing and captioning "live" screens.
Now at version 9, this is probably the standard against which other (often cheaper and simpler) applications are judged.
The feature list is by far the most extensive I've come across. It's now possible to record a live screen application once, and then turn it into a system demonstration, an interactive "emulation" and a quiz. Soft skills /management training is now simpler than ever and, as well as the legacy Shockwave/Flash output that many corporates hate, Captivate now publishes to HTML5. And, most important of all, it's responsive, meaning that the output screen size recognises the screen it's being played on (tablet, smartphone, PC) and adapts accordingly.
Over the years, the feature list has developed, though so have the bugs. I (life all the users I know) have had experiences where a couple of days' work goes up in smoke with a file corruption. Or a feature that should work just refuses to do what Captivate says it will do.
I haven't yet used version 9 (I'm still on version 8, which, to be fair, seems to have ironed out many of the issues of previous versions, especially the famous versions 3 and 6). Colleagues on v9, however, tell me it's a worthwhile upgrade.
The other gripe is around cost. As a "one man band", and an occasional user, depending on my client's requirements, Captivate is expensive. A few years back, they started a monthly rolling license which, for me, made so much sense. I could "switch on" when I needed to use it, and "switch off" when that project ended. Now, however, the minimum contract period is a year, which for occasional users, makes the product more expensive.
Finally, and not just related to Captivate, is trying to get any sense from Adobe. Over the years, I've had conversations with so many of their product ambassadors and support people, and all of them have ended with me wondering how Adobe manages to survive!
Survive they do, though, and for serious elearning projects, Captivate must be considered. Nothing I've seen is quite as good, at least on a good day!
Kiosk style application emulations
Quizzes (links to CMS databases - e.g. MOODLE)
Case-based elearning (branching scenarios for soft skills/management skills etc)