The thing I liked the best about LearnDash was the functionalities that the program has.

The organization system of LearnDash (course, lesson, topic) is pretty straightforward and easy to learn. For most people looking to create an online course, this is a great option.

What do I like best? The team - they are in-tune with the LMS landscape and are constantly improving already great software. I've set up lots of courses on it, and I love the ability to make them modular, help guide my students through the course, and much more. Their widgets and shortcodes have been a life-saver as far as adding course information to custom areas of my website.