The courses are great. There's videos and resources for learning, quizzes to make sure you're retaining information, and at least one assignment demonstrating your learning per course. The courses are about a month long with deadlines for respective components throughout. That said, you can work ahead and finish the course as quickly as you like or are able (which is nice!).
I was also continuously impressed by the peer-to-peer support. So many people are willing to help one another and work collaboratively towards a solution when faced with an issue. I was surprised to have more discussion board activity, support, and productivity here than I've had in more formal, expensive, for-credit courses. Shout out to helpful peers and the TAs!
This was a great introduction to the topic and allowed me to quickly develop various skill sets. It was also enough information and resources to make me want to learn, play around, and spend more time on the various topics. That's on me to do, though. One of the other great things this program teaches you is to seek out information from various sources or places, as well as empowering you to make your own resource.
If you're already proficient with coding, this may be slow or extremely easy for you. More than half my battle was making concepts work with R code and/or using command prompt to push, pull, and post data to various places. Again, though, you can work ahead through the courses, so you can work through things you already are familiar with and/or get through the content even faster.