Fudan is one of the best universities in China. Third-best, to be exact. I say this not based on surveys or viewbooks but because the government of China really does rate each and every university in a certain order, and Fudan happens to be third from the top. So there you go.
You'll notice, if you travel around China and people ask what you're doing there and where you're going to school, they'll be very impressed when you tell them you're at Fudan Daxue 复旦大学. Be gracious when people compliment you on your studiousness, but keep in mind that it's way, way, way harder for Chinese students to get into Fudan than it was for you to get there (or to get into Queen's, for that matter)--especially if they're from outside Shanghai.
China has a bizarre quota system when it comes to higher education, and it's extremely difficult for students to get into a university outside their home province (once you've been here for a while you'll learn about hukou and other fun stuff, and realize just how far the Chinese government will go to get the stability it craves). Chances are a lot of your fellow Fudan students are from other provinces; to get here, they would have had to be among the top five or 10 students in their entire province. That's kinda crazy.
The Queen's program is both good and bad in that it has little to nothing to do with actual Fudan curricula. Good, in that the courses you take are far more similar to Canadian-style undergraduate courses than just about anything you would find at Fudan; bad, because it means you learn less about the Chinese school system. That said, the profs are good and to a person they're there because they want to do this on top of their regular course-/workload. Keep this in mind before complaining about how busy they seem to be (but don't let it deter you from asking them questions and setting up meetings outside of class if they do have time--these are great opportunities to find out things not discussed in lecture).
Your classes are something between a lecture and a seminar--they're small in size but more closely resemble a lecture than a Queen's seminar. You'll notice right away that the Chinese school system emphasises memorization over critical analysis, and asking questions to the degree we're used to in Canada is unusual. Of course, you should ask questions anyway. But keep in mind your profs--as enlightened and liberal-minded as they are, compared to most other Chinese professors--probably aren't used to being questioned like that. Be nice.
The courseload is fairly light and not unbelievably challenging (especially because it's designed to include people who have never taken a development studies or history course in their lives). It is, however, heavy on the critical thinking and self reflection. Take this shit seriously, otherwise it really isn't worth doing.