I've got the developer preview installed on a machine, and I hate it! The Start menu is Gone! When you click the Windows Logo you go straight to the METRO GUI start screen. The desktop is a bolt on appendage to the METRO GUI. You go there to run classic Windows apps...FAIL. The system is responsive, but not quick, you have to scroll a lot, and I get lost in the METRO screens, with no easy way to back except hitting the Windows key back to go back to the Start Screen. In Metro, there is no task bar to see/switch to other running applications...FAIL. Finally, the whole METRO GUI is just too simplistic. It's a complete waste of space on a 24" display, it was designed but 1366x768 laptops, and doesn't scale up....FAIL. Judge or yourself, but I don't like it.