What are the Best Teaching Platforms as an Instructor?

Greetings All,

I know quite a few of you have your own courses and
educational platforms whether you have designed them all by yourselves or not.

• What do you use and why?
• What do you like about these platforms? AND, What do not like...
• What is important to your courses/work?

Some have claimed that if they were starting over they would "get you up and running more quickly" with:

• LearnWorlds
• Thinkific
• Leanpub
• ClickFunnels
• Teachable
• Kajabi
• Podia
• ad nauseam

Tell me about your online-course-instructor journey.