It is very helpful to take classes myself because it gives me an opportunity to see learning from a student perspective. I had a class recently and there was a text book change since the last time it was taught. Through the course they kept referring to the old text book. The course was not updated for the new text book. The other thing that was irritating is that this was a class that was taught online and in the classroom. My particular class was all online and the instructor kept referring to "when we meet in the classroom". The instructor also would indicate that the assignment was due on Thursday but then give the date of Wednesday. I thought the instructor was very poor at reviewing what she posted for this class. I also keep canned information for courses that I teach but I always make sure that I read it before posting in case I need to add to it, change something, etc. It sounds so basic but it can be really frustrating for students, which I experienced.