Application Performance Management (APM) is a minefield. Finding the right APM solution can potentially be a long, drawn-out and time consuming process which, by the end, the researcher may not actually feel convinced that they have selected the correct solution. This paper has been written to assist IT Professionals who have been tasked with researching the APM market space. It will help the researcher to broadly categorize vendor offerings and understand what those categories deliver, and what they don't. The paper aims to help the reader choose the correct type of solution for their specific business requirements, and avoid making incorrect decisions based on common incorrect assumptions.