This feature allows me to send e-mail to all my contacts. I always found myself switching from phone book to phone book when sending out e-mail. When I'm writing a check, I can instantly pop in a name or company from the phone book. It works, with Quickbooks too, but I don't use that software. And Lastly, It runs in a Network.
Users can access both the calendar and phone book simultaneously.
Something I could never accomplish with Outlook. I hope you enjoy the software, I highly recommend it.