Omar F. completed this course, spending 2 hours a week on it and found the course difficulty to be easy.
Background: I have worked at a startup for the past 3 years, so I was already familiar with some concepts.
Content: it was very interesting. They use a lot of real companies to explore and understand the various tradeoffs involved when deciding on a growth model. I found it very helpful to review these and look into how the various startups I often hear about fit into these models.
Difficulty: easy. So long as you're paying attention, you should be able to grasp the concepts and learn them.