best experience to learn something new in technology

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

Ich möchte den Kurs beenden

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 The material is hopelessly outdated.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.

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.