If you are a PM or any other manager involved in the project you need from time to time to share your documents with the team and other stakeholders. The question is how will you deal with the issue that not all members of your team have this tool installed? So not every member of your team can work with MS Projects you have created. The project created there are files with MPP extension.
It is user-friendly and intuitively understandable for people who know how to work with the MS Office packet. If you have ever dealt with MS Project you know, that this tool is really useful and pretty simple.
