1. Did you upgrade after the release of Windows 10? Yes.

2. Did the game start with zero issues? Yes.

3. Running DX11 version of the game just fine? Yes. (GeForce GTX 960)

4. Noticeable changes? Shiny and reflective floors.

5. Personal experience you would like to share about it? Not really. It is just slightly prettier.

Edit: 6. Did you follow up with a clean install after the upgrade? No.