I like that it has all of my devices synced up into one easy to use platform! The software isn't as user friendly for someone who's not very tech savvy but we have been able train our staff well enough so they can navigate through most things without too much difficulty - however there are some features or functions which you need help with initially (but once trained this does improve).
We're using fusion udm premium mainly because its integrated end point solution allows us access from anywhere at anytime whether via desktop/laptop computer etc.,.