I like that it is easy enough for anyone with little knowledge about computers or software development to use. It also has an intuitive interface which makes navigating through it very simple. The only downside I have found so far are some minor glitches here and there but nothing too serious. We needed a tool that would allow us to send bulk emails without having to log into multiple accounts each time we wanted to do this. This helped us greatly as our team was growing and sending hundreds of thousands of emails every day.