It's easy to use, and it works great when you have many users! I'm able to manage my entire team with this program. The system is very customizable and can be modified as needed. Sometimes it takes a while to upload documents if they are large. If you've ever used Google Apps, you will feel right at home using this program. I highly recommend this for all of your Google Apps needs! We love that we can organize our emails so much easier than before. This helps us save time and make more efficient work days!