I like that it can be used with any email provider (Gmail/Yahoo Mail). It's easy to use and has many different options available. Sometimes you have to do some research to figure out how something works but overall very simple to set up and get going! There are not too many downsides as far as this software goes. We were looking at other similar programs but none had all the features we wanted so when we came across CloudExtend our decision was made pretty quickly. The ability to sync contacts between two platforms is great! This lets us keep track of everyone in one place without having to constantly copy and paste information from one system to another.