I tried outlook 2013 in the preview of 8.1 and went back to the basic mail app. I'm not a complicated Outlook user - I don't need multiple mailboxes or other advanced features, just basic mail and calendaring. I missed not having mail integrated into the modern apps world. Printing, sharing, settings are all old school. With the basic mail app, you can be in IE, photos, or any app that supports it and use the charms menu to share to email. That's a much more pleasant experience for me than copying a link or photo and dropping down to the desktop, opening outlook, pasting, etc...