Very negative experience here, Bob.
I'm building 2 new computers at the moment - started building, selling, servicing PCs in 1985. Installed Windows 7 on the first, fine-tuned it (with all the right drivers) and had it running very nicely. Then did the update to 10 on the first day it was available.
The update produced the most bland machine imaginable - Windows 10 didn't even recognize the monitor (an HP IPS LED) which a Windows 7 installation immediately recognizes by specific model number. And that was typical - I had to search for drivers for virtually everything all over again.
I also don't like many of the "hidden" features, and am back to a clean Windows 7 install.
I freely confess to being rather distrustful of Microsoft in general. My many years have convinced me of 2 things: (1) Microsoft programmers seem to live in ivory towers, completely unaware of the real world and much of the hardware we work with, and (2) a company that presents false information in a federal court doesn't rank at the top of the list of corporations that practice integrity.
That's my two cents - to those who like Windows 10 and have had a smooth transition, I say "great!"
Dennis