Valid points but the author highlights one of the original reasons I switched from a ThinkPad running Linux to a MacBook. All high end Linux laptops have driver issues, including ThinkPads. Last thing I knew you still couldn't switch between discreet NVIDIA graphics and the Intel 4000 without a reboot. I've been told some laptops still have issues with sleep / hibernation. Maybe the Dell XPS 13 highlighted in the art…
I've had an Nvidia Optimus + Intel 4000 since Nov 2012 and I never had to reboot, just specify when I wanted to run a particular program with Nvidia (games), everything else would run by default with Intel. Everything worked out of the box, the only minor issue is that bluetooth audio connection with my jambox is sometimes lost, but i could never even get it to work with a Mac.
Definitely not happening in a multi-monitor setup without Bumblebee or other workaround.