I do not praise it.
However, it was a wake up call for me.
Here is what is nice about a tiny netbook and tablet with touch. PORTABILITY. It is like a cell phone but bigger and can do real work. Windows 7 and Gnome 2 are nice if you have lots of regular apps (not applets) with a dock/taskbar in a system of organization to launch things right?
Starting with win 7 I just type what I want and rarely use anything on the start menu. I occasionally do when I need a component or something. I use jumplists. If Metro apps can function on a taskbar and I could have a start menu with a mouse, but a start screen when I detach the keyboard I can live with that actually. My brain would resist the new look and difference and I would need to remind it of the benefits. Something a child does not have to worry about as they have more agile minds.
Windows 7 would be terrible and so would a heavy bulky laptop for her.
So as CPU's and GPU's get faster and SSD's are rapidly getting faster, more reliable, and cheaper we will see the power to multitask more in tinier packages. I think Windows 8 needs MASSIVE IMPROVEMENTS but it is an early look at the future. Apps are nice too in that you do not need +30 tabs opened in a browser when an app can do the same thing. They remind of the pc era in the early days of shareware where people installed applications for everything. Remember those?
A new sleek UI that still has features and is better implemented is doable and does have features for professionals too if done right if you get rid of the eww change. Many still can't handle the change away from office 2003 and are clinging to it for life.
Imagine going on a business trip where you carry a thin 13 inch hybrid in your carryon instead of a bulky laptop bag. It easily fits in your tray on the airplane, has +8 hours of battery life, and when you arrive in the rent a car GPS and maps navigator pop up with weather reports, etc. It has a taskbar and can run Office. It can do be doable and perhaps nicer than Windows 7 if done right.