ScreenFlow

Screenflow in my opinion is the best software to produce video courses for those who use macOS. The simplicity with which you can add special effects, callouts, sounds is disarming.
Adding your own voice track is super easy, as is editing and managing secondary screens, webcams, iOS devices connected to show apps and systems running.

One of the things I dislike very little is the fact that upgrades are paid for. Also, in some situations it is unclear how to manage projects, especially when saving as a single file or "package".

I work in IT and am constantly sending instructions to contractors, or clients. Some of the free options are great, but lack in the editing functions that Screenflow just knocks out of the park. You can overlay music so walkthroughs are less dry and awkward, and add click effects or Zooms to specific parts of the video. You can also use blur tools to block out API keys, passwords, or any other sensitive information that may have otherwise made its way into your tutorial/walkthrough.

Not a huge userbase, but support is still relatively easy to find online when there's something new I'm trying to accomplish. The app's interface is almost too simple, but after a short time, you get used to where things are. Overall, still very happy with this software.

For me, this makes media work a breeze. Screenflow is so flexible and easy to use, it really takes something pretty complex to make me use anything else. From quick video creation, editing and even audio recording, it's my go-to. It makes so many projects quick and easy.

This is where I'll have to be honest... because I've used it for YEARS and used it A LOT, I've experienced many crashes, freezes and bugs. BUT nothing so debilitating that stops a project in its tracks. Usually any mishaps or "bugs" can be solved with a simple restart of the software or restart of the computer. In 10+ years using Screenflow, I think I've only completely lost projects due to software error 2 or 3 times.

ScreenFlow is easy to use whether I'm recording my computer screen, myself, or my iPhone screen. With a little instruction and practice, it's easy to combine videos and audio within the software that you'd like to add to your screen capture recording. When filming yourself with slides, it's easy to move yourself to different areas of the slides in the recording.

There have been glitches from time to time where my recording disappeared or didn't save. I feel like these bugs have been corrected for the most part. I also save all raw files to my computer as well as exporting the edited version so that nothing is lost.