I did it on the same day as the year 10s, it was on the 15th June. I knew a few people who did it for year 10 entry and they said their test was easier than the acer one they did the previous year for year 9 entry. For me I had the same opinion, surely the edutest was easier than acer. The writing part for both year 10 and 11 were the same- as in we got the same topic so I think you know what I'm talking about. In general, the tests were kind of easy, but that means the gap between an above avg and superior is small so accuracy is really important. For math, a lot of the questions were like factorising quadratics, using the quadratic formula, distance formula, midpoint formula, basic stem-leaf plot, basic calculations and some worded questions which were not wordy at all. NR was very simple, most of the patterns were linear and there weren't too many worded questions. VR had a few complicated words which I think you should improve vocab for, but something I did was do all the vocab ones first and leave the logic ones to the end. This made me save a lot of time. For RC, just read books and do practice tests because that test is similar to the year 10 one when I did it, it doesn't vary in difficulty and I remember one of the texts being an extract from one of Jane Austen's books (I think it was Pride and Prejudice). You should read popular literary texts like that because sometimes you don't actually need to read the entire text if you know what it is about. Overall, it is really similar to the year 10 test, only in math they had more complex stuff.
Hope it helps!