Well I get to opt in for Google for their services.
Windows 10, you have to opt out of all those things in the OS.
Or you stay on previous Windows or go Linux to avoid the data collection.
I read somewhere that people were having problems connecting to certain Wifi networks compared to Windows 8. Actually Windows 8 Wifi is sometimes problematic too but I rather deal with something I know for now, since I'm taking off in a couple of days.