Ken, I don't much like 10. (build 10162)
Cortana isn't working well, if at all, with voice, some settings can be hard to find. I had to Google to find out how to set a screensaver.
The icons and GUI suck. I don't like the start menu. I get notified of notifications, go there, nuttin.
Microsoft Edge won't sync my IE Favorites Bar. It also didn't want to allow me to change the home page, took 4 tries to get it to "take".
What else can I say?
I haven't researched the use of Defender, but I prefer my own A/V program. I don't trust MS to keep me safe.
I'm currently running 10 in a single boot scenario on a "junk" PC with a dual core AMD CPU@ 2.8 GHz, 4 GB of DDR3 ram, and a 400 GB HDD. ATI Radeon HD 6450 graphics card.
As yet, no Stardock products installed.