To the point of use, I can only say ...
... If you get used to it, it is quick and easy by hand. Learning something new is difficult, that is understood by itself but true innovation comes from change;.)
The speed is ...
... Is amazing, as soon the system up before you could even make coffee until it was finished. Even after the rapid start no performance degradation by eternal reloading (plain, also comes to the PC). Programs and games are neither negative nor positive influence in terms their speed. I, however, starting selbiger become noticeably faster
The Windows Store has ...
... Quite a bit to offer. Like any store who began it takes until it has filled with usable. However, since a lot of people use Windows and continue to set the manufacturer on, it will not be back until there is supply.
My system:
Intel i5 (2.66 GHz)
4 GB Ram (tackt is omitted me ^^)
Nvidia Gforce GTX 260
500GB Western Digital SATA II HD (7,200 RMP)
ASUS P7P55D Motherboard
Conclusion:
I find the new Windows is a bold but necessary step. It reinvents the wheel is not new but is innovative and user-friendly. Access to the administration tools is a but (open File Explorer and top of the bar) in the Desktop view much lighter designed. It is very stable, has much less vulnerabilities than its predecessor and ensures fast working right after the start. So for me no reason why it should not get ... unless of course their own stubbornness)