Only Use ATI if it's free. The support is terrible. Coaches often do not reply the same day, are off and weekends and do not want you to go forward with remediation (they give you remediation despite your score, usually just 4 questions if you score well). In some cases rude or uncaring (you will have to redo study modules if it has been over three weeks since you have done them). Bottom line- terrible program and purchase another for a back up. Colleges are leaving this company for good reason. One of the other College instructors recommended Kaplan. I hope this helps!