It's the worse online system ever. Cengage has no room to be worse. It's buggy. Won't take your code as right. You're going to spend more time trying to figure out why you can't pass the exercise than actually learning something. It's perfectly made to keep students spending hours logged in what makes schools look good. I hate the system from the bottom of my soul. I'd like to be able to just complete the *** assignment and go to the next. But you cannot do it. You have to go from the step-by-step process that is full of bugs and disgustingly designed. Stay away from any school that uses this. You have no room to be creative using this system. Is irritating at a level that I can't no more. User's recommendation: Stay away from Cengage or any school/college that uses it.