It is said you have to choose the right tool for your job. That applies to the usage of indiors. Before you can even do that though - you have to understand what that job is. The tool can not tell you exactly what the occupation is. I'd say that, then, somebody who uses it correctly wouldn't even really need it. Just really more a matter of convenience than anything else. The exception is if you're using the exact indior as part of the EA.