My experience with the course has been very good overall.
The drupal 9 book "Expert in Drupal 9. Site Building", which accompanies the course is very well structured and is a great support in the progress of the course, also has many references to external links if we want to expand more on a particular topic.
Fran (course teacher), responds to questions and gives possible solutions to students as quickly as possible, usually responds the next day to make learning as smooth as possible.
The course has been easy to follow and advance in the practices, it also helps that each student has several servers to work on the practices, there are also the forums where you can ask questions that other students have already consulted and got their answer.
I thank Fran for answering great course.
A hug.