Professor Xue is super sweet, but his lecture can be super technical, so it might be challenging not to fall asleep. The content discussed before the midterm is very detailed and technical, possibly one of the hardest GIS electives I have been in. The primary grade for this class is the weekly lab assignments, which can take a lot of time for the writing portion. I always got points deducted for the most minuscule elements each week, so it is better to talk to your TA regarding your work and expectations. Midterms are challenging but not too hard to do if you study well. I did not enjoy the first half of the class much, but I found the latter half to be very useful, especially if you want to continue remote sensing as a career.