I had tried to keep track of store advances on index cards for years with little success. A customer in the information field made a spreadsheet and installed it on our PC. It was easier to update, retrieve information and was actually used more than the index cards were. It wasn't until a friendly competitor suggested Intro XL as a solution that I found something better. They had been using it for several months and were happy. I've had it for six weeks and, for the first time, believe that I have finally found a method to keep on top of the store lendings. I give it four stars now. I will update as I learn more about the system.