I like that it is easy to use for beginners as well! It's simple enough so you don't have any trouble using this tool at all but still powerful in its own right with some advanced features such as transitions between steps or even animations of background images (which are not available out of box). You can also animate multiple elements simultaneously which makes things easier when designing websites/web apps where there might be many different components involved; i'm talking about complex page layouts here - think Facebook cover photo slider etc.; if one element needs an additional transition then everything else will follow suit without having to rework your whole design again.