I am not sure what you are all doing, but I have not had a single issue. Weird!
On installation the only weird thing was dual monitor update, but only required a restart. Since then not a single issue and I have quite a substantial amount of software that is supposed to have quirks with Windows 10 but not a single one has been seen.
One thing I do not do in most cases is develop the hell out of a platform
. I just use it, so maybe that is the problem.
There is no way I will go back to Windows 8.1. My installation was direct to 8.1 as it is a new computer. I first put Windows 10 on my laptop and that too is not experiencing any issue at all.