I'm far more wary of Windows updates than Ubuntu updates.
I have the same install since 14.04, I have updated to each version up to 16.04 and it still works fine.
OTOH, I reverted the Win10 free update and went back to Win8.1 because Win10 did not work with my bluetooth devices, the tablet functionality was inferior to Win8.1 and it was actually unpolished compared with the Win8.1 experience.
Your second point is simply opinion, and while I can't argue against it, my own experience using Ubunty with multiple monitors and virtual desktops makes Windows feel limited in comparison and therefore much less professional.
I have the same install since 14.04, I have updated to each version up to 16.04 and it still works fine.
OTOH, I reverted the Win10 free update and went back to Win8.1 because Win10 did not work with my bluetooth devices, the tablet functionality was inferior to Win8.1 and it was actually unpolished compared with the Win8.1 experience.
Your second point is simply opinion, and while I can't argue against it, my own experience using Ubunty with multiple monitors and virtual desktops makes Windows feel limited in comparison and therefore much less professional.