Agreed, 7 was decent while 8 was another 'Vista moment' best avoided, 10 is solid (now).
I upgraded my office and lad's gaming PC's from 7 to 10 about two years ago, everyone happy, especially game boi. I subsequently upgraded my 12 year-old work laptop from 7 to 10 and was pleased that it also sorted out some intermittent hardware issues (bloody drivers!) that had plagued the machine after about 3 or 4 years of those infernal Windows updates. Since I built both PC's around 2011/12, I'm not going to waste time going to 11 but the lad's getting a new gaming laptop for his birthday this month which will come with 11.
I replaced my old laptop with a new slim and svelte 11 machine last December. Really, really happy with it and the weight-saving over it's predecessor.