Professor Heyrat is okay. Easy quizzes (but you should still take them seriously since they are 30% of your grade) and easy grading of pre-labs (full score 20/20 most of the time even if you just complete the pre-lab even if its wrong) earn him two thumbs up. Other than that, he blazes through the explanation of the experiment and leaves you on your own, which I guess can be good because then you can get out of the lab faster, but if you sort of bs'd the pre-lab you'll maybe have some difficulties with the lab without much of an explanation as sometimes the procedure he wants you to do differs from the procedure he has you print out to bring to class (which occasionally differs from the lab manual). He does come by occasionally to ask how you're doing on the lab, so I guess that's kinda nice.

My TA in the Spring 2012 quarter was Ramy and he was a bad ass, just be sure to have him double check all of your data when you reach certain points of your experiment and not the professor (who will just sign off on it without looking at anything, which might lead to points deducted on your lab report for bad data). As long as your data looks okay to him and your lab report's error analysis isn't complete crap, he'll likely give you a full score or nearly a full score.

Other than that, I *think* the class is just graded on a straight scale (90% = A-, 80% B- etc) so as long as you study a little for the quizzes you should get an A.