Absolutely cracking unit! Darren is a goat! Lectures are super easy to follow and all 37 were uploaded at the start of the semester so you could get ahead if you wanted to. Lab component is just a fortnightly Mathematica assignment which doesn't really take too much time. Tests and exams were about what you'd expect for any of Darren's units. Would definitely recommend, especially for those who enjoyed the previous maths units.