The semester 1 lecturer is a tad boring, he doesn't use powerpoint slides. He basically gives you uncompleted notes and you fill in gaps, some people liked him though. The lecturers in semester 2 and over summer are both brilliant, definitely recommend doing the subject during those times if possible.
And yes there will be tutes, that system is sometimes slow to update and doesn't feature the tutorial times but there's about 30-40 different tutorials because marketing is a huge subject so there's pretty much anytime you could want! I recommend getting in Melissa's tutes, she's incredible.
Also, since the lecturer makes their own notes and creates their own exam the course is actually quite different between each of the lecturers. My friend who did marketing in sem 1 gave me their notes and I couldn't really use them at all because the content they covered was actually really different. However, there exam was definitely a lot easier, apparently in sem 1 the exam was pure regurgitation of what was on the lecture notes. Although 4 essays in 2 hours seems daunting if you do it in semester 2 I promise it's doable and Simon the lecturer is so funny and great it's well worth it! Just like anything else, if you put in the work you'll do extremely well in marketing
Let me know if you have any other questions!