Lagha is a wildcard. His lectures are disorganized and don't totally follow the curriculum, but he's a homie and makes the class as easy as possible. I ended up relying a lot on the TA to learn the subjects, but with that the class is very easy. Lagha gives you all of the diagrams that will be on the exams, so it's pretty easy to figure out what the questions are going to be and solve them beforehand. Overall Lagha is a great guy and his class is pretty easy, but if you're really trying to learn all the basics of fluid mechanics I would try to take it with another professor.