I like how it's very simple to use with no frills or extra features. It has everything you need in one place for communication. There are only two things I dislike about this program - 1) No way of importing contacts from other programs (Outlook). 2) The "send" button can be difficult at times when using multiple windows/tabs open since they don't always stay put where you last left them. Use if you're looking for something super fast and simple to communicate with your team members. We have used several different applications over the years but never found anything quite as good as collabaa!