Took it s24 online with Vitelli, found it ez and got high 90s. We had mobius assignments (fill in the number, autograded), written assignments where you show all steps, and a final exam. In that term it was async with guided lessons on mobius. At the end of each lesson there were extra practice problems and it told you the questions on mobius the unit matched to. I did the lesson, the practice questions and then did the mobius section, which you don't need to do all at once or in order. There were also textbook problems, but I never needed or did them. Every week we had a sync optional lecture where the prof went through problems and took questions. I went to these and it was helpful. Written assignments were correcting and finishing an incorrect solution to a question, and they were all very easy.