This course is the second in Data Science Professional Certificate provided by HarvardX. So far the courses are very good and I'm eager to start the third one, as soon as it's made available.
I do have some knowledge in other programming languages that I had to learn in college, but programming isn't my strong suit. With this background, I found the difficulty level adequate, since some pieces of code are provided, which gives a sense of comfort until you get the hang of writing the codes yourself.
The best in this course are the exercises provided: the themes are interesting and the proposed activities are relevant (I mean, I have been taking other courses while waiting for the remaning content of the program to be uploaded, and there you do learn the same functionalities, but by playing around with data in a unstructured way, that doesn't provide a meaninful data analysis).