Outdated materials, theory is taught and then praxis is tested. Course needs an update to materials and either teach AND test theory, or teach AND test praxis. I passed this class by switching sessions multiple times in order to use the time to learn the practical skills in data visualization I needed to pass the tests.

Additionally, the presented materials and the lecture format are very uninspiring.

The course material is inherently interesting, but the videos are not very engaging. The presentation is quite monotonous and the wording / phrasing is confusing to follow. I'd suggest preparing a new set of script that explains the concepts and clarifies the details while cutting out *very* generic pronouns like "this node" or "that thing" or vague acronyms

too theoretical without enough practical quiz and assignment

Very generic ideas, not sure if worth it.

Too basic.

I suppose that we should have some basic knowledge of data visualization before this course. There are no practical sessions. I could not understand many topics and it seems that content has been missing from this course.

This is not very informational whatsoever. After some sifting, I did not find this course to be useful. I would rather complete a formal course on the topic at the university itself.

The course do not match its price at all, it is catastrofically sketchy. First time while using Coursera I am so much unsatisfied with some course.

The Course was not well organized. Week 1 contents was of no use. Could have explained the topics with examples rather mere definitions.

Too dull, no programming explanations. Sometimes too simple and suddenly too technical.

Awesome course for beginners

Starting it now.