A WONDOZE user who happens to be sitting in front of a Linux computer is satisfied with the useless blob.
A LINUX user is totally unsatisfied with dealing with bullshit 3rd party closed drivers that could very easily be SPYING on them. I dare you to PROVE that they aren't.
A Linux user is mostly unsatisfied that Optimus is not supported on Linux.
Developers are mostly unsatisfied that they have to reverse engineer the proprietary drivers in order to get something working in the open source drivers and that nVidia developers don't help to improve the open source drivers like the AMD developers do for AMD open source drivers.
Those developers who are NOT INVOLVED in nvidia bullshit dispise nvidia because nvidia shit doesn't work.