I disagree. Yes it is popular to hate the OS as satan here on slashdot.
Windows 10 anniversary over 7 has:
1. Much better battery life for laptops and not just portables
2. Native wifi and NFC printing
3. Native USB 3 and USB type C drivers
4. Stable NVMe (7 is backported with 3rd party drivers that are buggy)
5. Hyper-V (A Must for any IT professional!). Yes you can run native Ubuntu and Fedora with a generation 2 VM
7. Cloud integration with azure with Azure Active Directory. Some businesses prefer this model over having an expensive IT department
8. Ink works well on MS surface and hybrids for OneNote and Sticky Notes. I own a Surface Pro 3 and yes it is a work tool for me that is ultra portable
You could not pay me to go back on Windows 7. The only good thing I have to say about Windows 7 is it is very stable and has a consistent gorgeous UI with aero. But like XP it is showing it's age with 3rd party drivers that do not work well, terrible battery life, and it does not work as well with modern hardware.