I bought Investment Detective when it was first released. I’ve found it useful to keep a detailed record of my properties. However, I think as the program stands at the moment it is a bit too limited to be relied upon to evaluate a property prior to purchase. Sure, it can do the sums on the basics, but it is up to us as clever investors to make an educated decision on a property purchase. There are so many variables, not to mention the potential of a property for future growth in value that no software could calculate. You can’t beat that gut feeling.