Been mega impressed with the consumer preview running on a dual screen desktop PC
Yes it is a bit different to Windows 7.
Its way faster
Metro is fantastic once you get used to it.
I work in a media intensive environment, building websites, editing videos and pro photography.
The Metro tile interface is so handy because it allows you to group your programs together and set the order they appear in too.
It loads in record time, just 5 seconds on an SSD drive, shutsdown in 3 seconds.
Apps and programs load faster than windows 7.
If you want the standard start menu from Win7 you can have it, Stardock have made one and its good.
For me I will be sticking with Metro.
I did find having to set up a Windows ID annoying at first, now its actually great as all your media feeds are kept up to date.
Give it a try, there is a learning curve, its worth it.
Extremely impressed with where Win8 is going.
It has sped up my workflow