IELTS and the other exams like FCE or CAE and CPE have similar approaches to the way that they assess them. I've seen effect on the reader is one of the criteria that's used in some of the exams, he says. We don't want to blow the examiner away with all these fancy structures so much that the examiner's got no idea what this essay is about but on the other hand we do want to show a certain level of ability and fluidity and eloquence of our writing.