I can't speak for S4/suspend to disk level hibernation, but regular S3/sleep when I close the lid has worked perfectly for me since 2008.

That isn't to say that it's worked out of the box. When I install Linux on a laptop, I'll put some effort into making sure everything works as wanted and this might involve adding kernel flags or mucking with dbus, and it certainly involves some research. If you expect any open source OS to behave like a proprietary OS you bought a license for, you're likely to be disappointed. If you come in with the expectation of learning to solve problems for yourself you'll fare much better.