The workload is really not that bad; it’s not easy, but it keeps you busy. First year though is very easy, and it gets harder as you go up, but you become more capable of handling it. I would also point it out that from your sophomore year, you tend to take classes that you are /actually/ interested in. I personally have found the upper-division literature classes to be very challenging – the material is difficult, moves fast as the semester gets going, and you have to write responses to your reading before every class. My french literature class, for instance, covers two times the material an average school in the US would offer. But if it wasn’t challenging, there would be no point in doing it. I have taken upper-division classes in the social sciences, and they are easier than the humanities classes – at least for me.