Morgan I took the Kaplan 11-day program. During the class, it quickly became clear that they would not be preparing me to be a good home inspector. Instead, they were preparing me to graduate from their class. The instructors were generally intelligent, generous, helpful people. The program simply did not provide enough time to teach what you need to learn. They also preached extremely conservative inspections, a lot of referring-to-an-expert, cover-your-ass reporting, etc. They have to, because that's the only way to get a meter maid(for example) to do home inspections in two weeks. The shorter correspondence course can't be any better. If you read every book and handout they provide, it still isn't close. That said... I did find the class helpful. It provided a starting point. With that, and going out on a few(about 100) inspections with someone who wants to teach and knows what he's doing, you'll start to feel like you know what you're doing. Until then, you probably won't be helping your clients much. Good luck. Read everything you can, especially here on this forum.