when i bought my new laptop, i wondered the same thing.
i thought oh wth, just go for it, since it sounded safe lawl..
turns out that i forgot all about it and when i made a stupid mistake from mobility modder + latest ccc and display driver, that i couldnt even boot to my windows screen like i always used to. (first time) ...
got a BSOD after every login
so i went to safe mode and executed system restore. the system restore points were usually before installations, etc and i chose an appropriate one
worked very well.
in fact all your program settings revert back to the time of the restore point making. eg. for firefox, i clicked on "Do not show next time" for their closing warning but when i restored my computer :O, it came back like magic... so yeah, pretty cool
now i'm back to normal avoiding the 10.1 ccc + mobility modder combo
so take it!!
do it!!