Outlook 2011 is overwhelming in the good sense of the word. It is jam packed with all sorts of great features and customizations. I can move the reading pane to any position, schedule a meeting based on an E-mail, quickly contact a coworker via Communicator, view a preview of "My Day" and many, many more great features. Outlook 2011 feels more like a Mac app than Mail does. The Office Mac team at Microsoft went all out and I am totally impressed. Where Mail is a hurdle, Outlook is a pair of rocket-powered rollerblades. If you don't have it, get it. Now.