The ability to do more than just store files in an object oriented manner. If you are looking at using AWS as your primary file server this product allows you to build it out yourself without having to rely solely on their products. I was able to set up my own private network of servers that allowed me to have multiple locations where data could be stored. This made life easier when moving jobs around. It's not perfect but does what its supposed to do which is provide a great solution if you need something custom done. We used it for our internal file server.