Alexey is a beautiful, funny man and a really engaging lecturer! His lectures were always clear and helpful, and he would often crack jokes during class. He definitely explained every concept very clearly and would answer student questions very thoroughly. The homework was just problems straight from the textbook and they weren't too bad. His tests were alright, too; the first midterm was a little difficult but the grading policy let you drop a midterm, and the final was very reasonable. Overall, I definitely recommend his class!