The look and feel of Windows 10 can be tamed with the right software. Once you have Windows 10 configured how you like it, just make an image your system disk every so often (of course this would not replace a nightly backup).
I was sceptical about Windows 10 at first, but when I was starting to read the good experiences people were having with Sonar and Windows 10, I though I would give it a go. I ended up going for Windows 10 Pro 64bit Retail. It might be placebo (or the fact that it was a fresh install) , but Sonar seemed to run a lot smoother as a result.
The look, feel and telemetry can be tamed with the right software. I would never go back to Windows 10.
Also, there is January 2020 looming as the time when Microsoft will no longer deliver updates for Windows 7.