I did ei this year and LOVED it. If you're going into ebs it should be with the intention of loving ei, because that's the whole point of the school. I found all other subjects to be relatively similar to other schools except they teach in a lecture theatre (but still treat you the same as classroom students, really).
In year 11 they make you do spesh, it's rare for them to let people move out because they want us to "try the whole experience" but you pick your subjects for year 12. the physics and 3/4 biology classes run at the same time so you could just do biology/chem/spesh/methods/eng/ei in year 11 and drop spesh for something else in year 12 (or continue with biology if you do 1/2 in Year 11).
Personally I'm meh about moving. I wanted to do ei and eng lang and my old school didn't offer them and distance ed seemed too annoying so I just moved schools. All other subjects are taught like any other govt school but it depends on what school you're coming from, mine didn't differ that much in rank and median ATAR but I moved anyway.