What is wrong with Windows 10

You can't go by what people say about any of the OS's as you will get very different opinions about both.

Some will love 7 and hate 10 and then others will love 10 and hate 7, you will never get a true picture asking other people as everyone has their own feelings about what they use.

I've enjoyed using all systems but then I've never had that many problems with any of them, others will tell you that a particular system is the worst made. You'll never get a complete answer as everyone's use and needs are different.

I upgraded this 8.1 Notebook to 10 but still have a desktop computer running 7 because it can't be upgraded, the CPU isn't compatible. I enjoy using both and won't say I prefer one over the other as both do what I want of them.

The only way you'll know for sure is to try to use both and see which you prefer, nobody else can make that decision for you. :)

To sum it up, MS decided, that people are generally stupid and that it knows the best, so it took away the choices.
Haters are mostly people, who like to have a control, like over Windows Updates, MS made everything automatic.
I tweaked 10 as much as I could, but I realize, that it will never be OS like 7/8 and definitely incomparable to XP.