I must say, I've been updating windows 10 religiously since installing it on my new laptop because there was a few bugs in the begining but after a few months, windows 10 is really solid and I'm looking forward to new features they roll out.
I have a I7 laptop from Samsung with a Ati 7660 Gpu and a Intel Hd 7000 Gpu. It's some type of all in one thing, when I upgraded to windows 8.1 I had to load a beta driver for the Ati part which resulted in a SLOW system. A bit scared to see what Windows 10 will do in this regard.