Class sizes can sometimes be compared to nothing less than enormous. I can guarantee you that this does not mean that you will be overlooked and therefore receive anything close to a free ride that just is not the case. If anything it means that you have to work that much harder to stand out and have your papers make the grade. The professors are not hard a@@es but they do expect a certain level of work. As long as you are trying to avoid the party scene you should have no issues keeping on track and making the grade the work is average as far as difficulty so it is nothing to be scared of but if you are here to learn then do not be surprised if that is what is expected of you as well.