i am a first year and have 21-30 hrs/week (varies), but this includes review sessions which can be up (5+ hrs a week). Also, typically 3-4 days before exams nothing "real" is scheduled. Only extra review sessions and clinical med classes. So it makes the week really light. I would say this is nice because he probably have like 15-20 hrs of hardcore lecture per week and th rest is lab and reviews, which are all optional attendance anyways.