I have graduated from MacRob a couple of years ago so some things may have changed, but from my experience, MacRob is a very academically orientated high school which gives a variety of subjects for students to choose from during year 9 and 10 electives, as well as VCE subjects.
Like all other public schools, there were a couple of teachers who were awesome at what they do, but you also a few who weren't so great. However, the environment that MacRob provides really helps the students to concentrate and study.