I think that the problem when it comes to Windows 10, and 8.1 was the same... not so much 8 but then...
But the thing is, that Windows 7 is so perfect, that you have to ask yourself if you absolutely cannot do without any of the features that windows 10 gives you?
In truth, the ONLY reason that I use Windows 8.1 on my main PC and not Windows 7, is that its a bigger number.
The only reason that I have not yet upgraded to Windows 10 on this machine, is that Windows 8.1 is running absolutely flawlessly, and I just cannot be bothered.
In truth, I much prefer Windows 7 because it looks so good and I have found, that since 8 came out, its just looked cartoon-ish.
Even more sickening, is that the latest Linux KDE Distros have now taken on that same junk look that Windows 10 has.
I have software that is very important to me, and it does not run under Windows 8 and above, but its great in Windows 7. That means that I need to keep one of my systems running Windows 7 just for that one application.
I am also using Window Blinds just to give my PC a bit more of a Windows 7 look and feel, but its just not the same.
When it comes to reinstalling Windows, there is actually a strong chance, that I will be going back to Windows 7, because Windows 8 and even 10, gives me absolutely nothing that Windows 7 does not, but has the minus of looking awful.
That said, I do think that 8 and 10 are a tiny bit quicker, they are of course much more up to date and the numbers 8 and 10 are higher than 7 so thats a clear winner right there LOL
On a more serious note, in the end, its up to you. I think that Microsoft has ironed out all the wrinkles by now, and there is only a few few number of people who are getting issues, sso the chances are, you will be fine.
There is always a risk to going from A to B but these days, the road is well kept.