This is an easy way to get feedback how the lectures are experienced by the students: Open a Google document, share the link, give DL and the students can give the feedback.
In the first round I used the following questions:
1) The course progresses too fast, slow or ok speed?
2) How do you feel about the topics of the course? (Exciting, useful..)
3) What is particularly good in the course?
4) What to improve?
5) Free feedback.
The students get also points from answering, but answering is not obligatory. The feedback can be given anonymously or with name.
How did it go? I got excellent ideas to improve the course content and a nice overview of the sentiment, for exeample what kind of activating methods the students like. Answer rate was at least 75%.