I'm really glad that I took 32A with Fattorini, because he presents the material very explicitly and tests you on only the things you need to know. The content is fairly simple, as long as you know basic derivatives, you should do well. The class comprises of 4 handouts he compiles, which contain all the material he presents in class as well as the homework problems. The homework is do-able and not too hard to figure out, and he sends out emails and tips all the time, which basically walks you through how to do the homework. He also requires that you use Mathematica to complete some of the problems, which isn't too hard if you know how to input the numbers the right way, and its a good way to vizualize the math you're doing.
At the end of the class, if you get over a 90%, you're guaranteed an A no matter how the curve is. With studying the material everyday for about 30 minutes, I ended up with an A.

So basically he's a nice old guy but if you're can't stay awake in morning classes, this will suck for you. Bring stuff to eat, and if that doesn't work, bring homework.
He gives extremely conceptual explanations that do not register at 9:00 am in the morning, and his homework involves a program called Mathematica, so if you procrastinate, chances are you'll be spending Thursday nights in Powell...
The worst thing's probably his homework handouts, which are e-mailed to you. A few days later, u'll receive a error corrections email, and a few days after that you'll get a corrections to the corrections e-mail. All together, hard to organize.
That said, the plus sides include not always having to go to class as long as you can teach yourself math. I went to class maybe once every two weeks, and never met my TA. The midterm was more like practice final, and final was mostly fair. So basically, Study+ Practice= A