I like that you can use your own photo, which is great in case of an event where there are many people who have to be photographed together! It's easy with this tool because it helps me create my photos without any problems or difficulties if they don't fit perfectly into one frame (as happens sometimes).
This software also allows us make special effects such as blurring parts out so we're able get only part images from them while still having other ones available too - very useful when looking through large amounts og pictures quickly but not all need showing everywhere :) Great option especially considering how much time photographers spend editing their work before sharing online/with clients etc.