Realize that many people who work for competitor products will bash it here. It is a best of class rather than best of breed solution tailored to organizations who want a secure on prem suite like O365. Some apps are best of breed, but you can find many better alternatives to specific apps. File sharing and collaboration is one of its strongest offerings. I think you will be amazed at all the sharing options available. When you need the tight integration between several apps and central administration, it is a great suite. It changed my life in a good way.