The ability to store and retrieve the documents with easy navigation. I like the fact that I can store the files in a separate folder from the main file. The software is easy to use and navigate in. I also like the ability to create folders and sub folders. The only thing I dislike is that there is no option to print the documents. I have been using this software since 2013. It is great software that I can trust and use. I use this software in an aviation company. I use this software to store and retrieve documents.