Just out of curiosity how are you finding the biomed course?
If you enjoy learning broadly in the biomedical sciences (i.e if you enjoy stuff like biology very very much) then you will enjoy it. If you have interests somewhere else, like in Chemistry or Mathematics, stay well clear because you will be forced to do subjects that you may not necessarily enjoy.
1st year is similar to a Science degree and heaps of people complain about it. This is because you do 2 semesters of Biology (with more focus on humans, unlike stuff like plants which you'll also cover in Science), 1 semester of Chemistry, 1 semester of Physics (which plain sucks) and also 2 other core subjects (Maths for Biomed and Stats). I guess people are just disappointed that "we're not learning medicine" since we have to go through stuff like Chem and Physics etc.
Both maths and stats are rather dry compared to your other cores, but they are easy to score well in so I would say there's no excuse for doing badly, even if the material is boring. You won't get to do these subjects in Science, but if you want you can read the Subject reviews posted on the University of Melbourne board.
2nd year is harder, and heaps of people still complain about it, mainly because of the difficulty of some core subjects (which largely amounts to people just whining). There's a big focus on "integrating" different fields of biomedical sciences and therefore you will be given a more broad exposure to the biomedical sciences (albeit at less depth sometimes).
There are some issues with how everything is integrated together. That being said, it is very focused on the medical sciences so if you're into that then there's going to be incentive to learn. The first semester core (MCB) is the best subject I've done, but the second semester subject (HSF) is not tailored to the Biomed degree at all, since you're pretty much receiving the same lectures as those in science except you're being taught a lot more shittily. Apart from your cores, you're givrn free reign to pick more medical subjects that are offered to both Science and Biomed students (such as Pharm or Microbiology).
3rd year I have no idea but you spend half of your subjects with Science students. I don't really know much about the cores.
Don't pick Biomedicine simply because of the fancy name or that it's seen as a "pre-med" degree. You will be essentially locking yourself to the health sciences, so if you have other interests you may want to explore, go do Science. If you're 100% set on pursuing health sciences it is the better degree though.