I have taken the approach of upgrading on my non-RDSS laptop first. The upgrade itself went smoothly and the Win 10 seems to run very well. The only issues so far have to do with privacy and the automatic updating. Microsoft has taken a bit of a Big Brother approach like others - Apple and Google
It has its pros and cons.
You can do a search on articles about the privacy etc. and take steps when you upgrade to turn off certain options.
Other than that, it seems to run very well. Some nice features and Start menu is back.
I am not doing the same for my main RDSS laptop until I get a better feel for Win 10.
Cheers