I bought it when it first came out. Glad to have 3 license keys and thought the UI was pretty decent, although much more cluttered than the ribbon. Anyway kept it up to date and ready to go in case I needed to do work stuff (most of my work stuff is done on a windows laptop). Had my first real opportunity to work on a project in word. All frustration aside in regards to the floating toolbar (just a personal preference), the speed of the app was ridiculous! Just trying to move around shapes, images and text was very slow. After 30 minutes of frustration I popped open my PC laptop (with the same specs by the way) and threw together the exact same project in a few minutes. Of course it was fast and smooth. Before you ask, I have the latest office update and am running a 2.4Ghz Aluminum mac w/ 4GB ram. Mac office is a joke if you need it for serious use. It's ok for opening office documents and making a few changes but I can't image using it in a work setting. I was so mad by how crappy the performance was it made me doubt macs altogether, but of course I came to my senses and realized it's just Microsoft who doesn't put much effort into their mac line.