Today Flexibits released Fantastical 2.5 for the Mac. There are several notable new features with the new version including Meetup.com integration and support for sending and receiving time proposals for meetings via Exchange, Google, and iCloud.
I run Fantastical on my 27" iMac in its own screen with 14 days displayed in week view. I think of it as my calendar control center. It's the only full-screen app I run on my 27" iMac and it's glorious. With version 2.5 they've added a bunch of great keyboard support to let you move and change events with just the keyboard. That is definitely my favorite feature in the new version. I demonstrate all of the new features in the video below. It's a free update if you already are a Fantastical for Mac user.