I like that it is easy enough so anyone can use this program without having any technical support or training from their IT department.
The interface could be improved by adding more features such as being able to upload documents directly into my email account (such as Word files). Also there are times when you have two people chatting with one another at once but only see half of each person's face because they're both talking over top of them; which makes communication difficult sometimes since we know who said what even though our conversation partner doesn't realize he/she was heard! This application has been very helpful especially during work hours where everyone uses different computers than usual within an office setting while still maintaining connections through Skype / Google Chat etc., We've used Messenger quite often between co-workers around campus instead of using other methods involving emails & phone calls just due its convenience compared to others.