The best thing about this tool is that you can view all your pages at once which makes finding out what content should be moved where very quick! It's also great because I have not had many issues with using this software as far as having bugs go unnoticed etc.
If there are no errors then everything works fine but if an error does occur the customer service has been fantastic so far when fixing them up. We use Sitrampo (the free version) to map our sites before we move onto other tools like Google Analytics/Heatmaps etc., This allows us to see exactly how users navigate around each page without ever leaving their device by mapping directly from desktop browsers such as Chrome & Firefox.