Micro 2 is difficult because its a very intuitive sort of subject. You'll get some theory, be given a few questions and be expected to pull some abstract micro eco analytical bullshit out of your ass to answer the question. I remember doing the homework, it looked deceptively simple but once you get in to it, you'll just get stuck unless it comes to you naturally (hence why its intuitive). Studying heaps for this course wont really help you when it comes to answering questions.
Macro 2 is pretty much just like Macro 1. Similar sort of content except the only difference is that you'll be given more variables/equations to remember and play around with. Still, it's a pretty straight-forward course.
I'm not sure what's happening next year but when they were offered this year, you had to do micro 2 in session 1 and macro 2 in session 2. It might've changed from what I heard as they're popular courses