I've recently bought a new lappie for my bruvver, who is even less technically competent than I am.
It came with Win 10 pre-installed.
I have to say that my experience of it was all fine. Much better than win 8. It gives choices about how you see and use the screen. It loaded all my software choices quickly and easily. (Spybot, jetclean, ccleaner, malwarebytes, Office 2007, FF + adblocker etc etc.)
Lappie is a mid range i3, 2 core but allegedly 4 threads. Whatever a thread is.
Not as quick as my 4 core 5 year old i5, but quite OK for home use.
So I am thinking of trying win 10 on my home pc. Need to think before the end of the month.....