This class was enough to convince me that architecture as an undergrad at Columbia is a colossal waste of time.
Yumi is a very nice person, and her own professional work is great. But the class was horrible. Her English is, as other people said, dreadfully difficult to understand. Your projects will either be "interesting" or "somehow successful." The projects have no ascertainable goals or direction, they are just weird and unreasonable. I didn't start out my college career looking to be a weird and unreasonable artist, but to help me learn professional architecture skills. THIS IS NOT IT!
I think this is partly an issue of what Barnard's conception of what architecture is and how it should be taught. You won't learn a single practical tool in studios here, like say drafting or 3D modeling (you know, the stuff that architects actually have to do) but how to "abstract" architectural concepts into bizarre and time-wasting projects like UFO hats that belong in some starving artists' gallery in the Meatpacking district.
If this is your idea of a good time, and you like spending all night designing ridiculous things like that, more power to you. Just don't expect to learn anything actually useful.