I found it pretty easy to be honest. Quite a few lectures slept through haha. Anyway, you start off with ethics of engineering and safety protocols for about 3 weeks, which also involves flowcharts. It's legitimately boring. I believe that in order to IEAust/Engineer Australia accreditation, the course plan must include some ethics somewhere so they do it with ESD1. The next part was Chemical Engineering fundamentals, which looked at fluid flow through different types of pipes and tank shapes. I found this part quite interesting and probably pushed the subject from a 2/10 to a 6/10 for me.
The last part was programming with Lego Robots, which, in hindsight, was quite fun albeit a little easy. MATLAB was used throughout the subject, however, not to the level of ESD2.
You could easily get away with not doing, however, I did enjoy it for the most part. You could probably skip the first 3 weeks of lectures (don't do it, I'm just saying) and still get a good mark for the subject.