Interesting article from Woody's site:
Windows 10 review: Hold off if you use Windows 7
This part from the article is of interest for me, as I'd already decided to wait until at least December before considering upgrading one of my Win 7 PC's to 10.
But the “real” Windows 10 (at least the “next final” version) won’t appear until October or thereabouts, in the form of Threshold 2. Think of TH2 as an accelerated Service Pack 1...