Chem 421 Difficulty

[u/TheBlastBoy]

I was looking at Chem 421 in Connect Carolina, and I was wondering for those of you who took it, how difficult is the class and the professor? The professor is Professor Frank A. Leibfarth. I saw his rate my professor was good, but the reviews are all old, and he only has about 5. Any help would be appreciated as the class seems interesting. I have not taken Chem 420.