Simple to use and that is about all there is about this product from BNED.
Does not allow for total creation of material within the system. The system is always slow, issues with students accessing material, delays submissions of assignments, automatically submit exams prior to completion, login usually results in SAML errors, only advice received is to clear cookies and browser history which still does not resolve issues, system freezes on a regular basis, submission time periods are up to 2 hours sometimes due to server, servers are too weak to handle traffic, issues saving items in course master drafts, propagation tool is a joke as instructors only allowed to accept certain items and from the administrator role still have to either manually change the material or use the repository, not mobile compatible, does not work well with Chromebook, unable to access certain areas as an administrator, and the list goes on and on.
Not worth the headaches from a design and administration perspective. Canvas, Moodle, etc. much better to work with.
Attempting to use to create online courses and the negatives are definitely outweighing the positives.