I like being able to see all of my inventory in one place (touch). It's simple for both me as well as our buyers/prospects! The ability to have multiple categories within 1 listing makes finding what you are looking at so much easier than having 2 separate systems open or searching through different listings with no way to relate them together. Nothing really!! Just make sure your system can handle it if there happenes too many sales during peak time periods etc.. We're using this tool mainly because we didn't want any more spreadsheets going back & forth between us when selling items from 3 locations around Canada - which was getting very frustrating not knowing where each item sold went without doing several updates every week just checking everything manually again after updating online would be impossible since they were constantly changing due dates ect... This has helped tremendously by consolidating those lists down into an organized list making updates faster once done rather then trying do update over 10 times per day.