The user interface (UI) is very simple because everything can be done from within your web browser or mobile phone without installing any additional applications! Also, you don't need to install anything in order to use this platform. You just login via internet and that's all (no installation required). I like especially the Chat function which doesn’t require users to download some other application or plugin. It makes things easier than ever before when communicating between our team members! One thing - sometimes there are issues related to synchronizing files such as pictures due to server maintenance work etc., so make sure you backup regularly using external storage devices connected to your computer system. There isn't much. Everything works fine up until now. So far no major complaints (or maybe only minor ones), however i do recommend trying out this tool first if possible. As mentioned above, they provide great customer service through chat rooms. They also help me set up.