For laptops I agree, lots of pain, but for desktops I've never had any major issues with the last 3 Intel+Nvidia PCs I've had over the years, always worked really well.
For me the only downside really is the extra reboot after an OS update every 2 months to update nvidia driver and repatch sound kext.
For me the only downside really is the extra reboot after an OS update every 2 months to update nvidia driver and repatch sound kext.