My chemistry professor forced my class to use this for our general, organic, and biochemistry hybrid class, it was the worst thing ever. Constantly being locked out of topics because we hadn't mastered other topics, being told our answers were wrong when they were right, and at one point ALEKS even had some of their chemistry materials just completely wrong. One of the worst aspects of this program is that when you mess up one tiny part of an answer, it just counts it as wrong instead of trying to help you find the right answer so you have to start all over. Another irritating aspect of the program is that when you get an answer wrong you have to basically start the entire topic over, if we get it wrong, then just don't give us another bar, don't take one away! I'm surprised that this program isn't considered torture. If were to lock someone in my basement and torture them, this is what I would give them. ALEKS is literally the closest I have ever gotten to suicide, please close your business, you bring nothing but sadness into the world.