I've had nothing but bad experience with Windows 10. Originally tried installing it on my main PC and couldn't even complete the installation due to a black screen that I couldn't get past. They have since released an updated ISO that may or may not have fixed the issue.
I've loaded it on my laptop and it works OK most of the time but the forced Windows Updates are a pain in the ass and there are a couple of weird issues like when trying to connect to a wireless network, you click on the Networking and nothing happens and have to restart.
On my phone it has been absolute hell. Everything from bugs to stability issues. In fact, before the Windows 10 upgrade, I don't think I've ever had my Windows phone freeze. Now it happens at least once a week.
So for the most part, I'll be sticking with Windows 8.1 + Start8 which in my opinion is the best choice so far. It works / performs better than Windows 7 and everything works as it is supposed to.
