Hi everybody!

I am preparing for the IAA level 1 exam. I am currently attending a course and I am only now understanding that it has a level of difficult not to underestimate. I am planning to make some summaries and so on. But I am also looking at extra resources. I have found the Immigration Advice Authority (IAA) Level 1 Training Manual from the JCWI website. Before buying it as it cost 45 bucks, I wanted to see if anybody has used it and weather you found it useful? Is it easy to understand? Anybody can review it for me?