The ease in which I can set up meetings, conferences etc is very friendly for my clients who are not tech savvy at least they do know how easy it was when we had our own IT department back then! Nothing really but if you have any problems just contact support team via live chat available 24/7 as well there customer service is amazing!! We needed an extremely simple way to communicate between offices that were far away from each other without having to be physically present together so this came into picture and now everything works flawlessly even across different time zones thanks to its flexibility.