The pronunciation of the professor was terrible.

The last activity wasn't coherent with what the course offered

It is good but the assignments are almost not related with the material. I mean in complexity and content.

best experience to learn something new in technology

The last assignment (example) wasn't so clear.

Ich möchte den Kurs beenden

The course assessments are very poorly designed. The instructions in the assessments are often unclear and incomplete. No course material (slides etc) provided. Lectures are quite standard and boring sometimes.

All the weeks have very interesting information, but the activities do not have all the information to do, in my case I had a lot of problems with the installation I could not do the activity.

Some course content is good but it gets off track towards the end. Some assignment instructions are not very clear.

The course gives a nice introduction in the subject, if you're completely new to the material. The material is hopelessly outdated. Provided examples are using frameworks which some cases dead for 10 years! Making it no longer practical.

The questions feel from time to time ambiguous and the answers not always helpful. The graded quiz's can only be done once when the required level has been reached. No information is shared on why answers were wrong. So no learning from the mistakes I made.

I had to leave the specialization because it was impossible to complete the assignment in the third week of the first course. The task contains an instruction that does not work (the TinyOS instruction needs to be updated). The discussion forum looks abandoned (no replies to topics for more than six months). Even the first question of the first week contains the wrong answer. The course needs fixes.

Outdated assignment descriptions (from year 2018!!!) where the manual for installation of the required tools does not work anymore, also partly because the tools are not supported by the developer anymore (e.g. TinyOS). The ability to make the assignments and get hands-on practice is the main reason for an online course.

Interesting material in the videos, but the projects can't be completed because the links are not maintained. No one responds to support requests to find missing information from the projects.

really shallow lectures, not getting into details and the quizes asks really un-relevant questions

There are many errors in the quizzes.

not good presentation