I like how it is easy to use, you can create your own templates or pick from their library of ready-to go designs for all kinds if business needs! They also have some really good tutorials that are very helpful when starting out with this software as well (I used them).
There doesn't seem too much benefit over other options in my opinion but they do offer more than others so its worth checking into what works best within there system before making any decisions about switching products/options etc.. It was pretty straight forward once we figured things our selves up - however i would say start off by reading through at least 1 tutorial just make sure everything makes sense otherwise try again later after doing something else first then come back here :).