1) It is very easy to use 2). Easy document management 3.) Great Support team 4.). Good UI5 5.) User friendly interface which can be used by end users as well 6). Very robust tool for managing documents like plans etc 7 ). Has great integration with many other tools including MS Project 8 ) Best in class support 9). Helps me have visibility across my entire organization 10). I am able see progress reports easily 11), 12 & 13). I like that it is easy to navigate through and find what you are looking for. That it's quick to edit models and keep track of changes. Not much! It's great to be able to work efficiently with others and not waste time on emailing back and forth. Being able to communicate in real time helps so much. Especially when there are changes or questions coming from other team members.