It generally works fine with my desktop, though depending on the alignment of the planets it sometimes just.. forgets it was hibernated? and boots like normal..

I've been using it pretty consistently for years, I achieve uptimes upwards of 60 days like this. The downside is that it takes kinda long to enter that state and there's a chance that it fails to enter it (though it doesn't crash, just goes to the screenlock), especially on my laptop - it refuses to go into hibernation unless I kill most webbrowser windows, especially stuff like YouTube.

And you do need a pretty large swap space; with those super long uptimes, even swap size = ram size isn't always enough, because sometimes the swap space is actually used as swap and not just as hibernation image storage.

Works great with HP Elitebooks G3–G4; honestly, worked great on any HP I've used. Might've worked on the Dells I'd used but they had other problems and didn't last very long so I don't remember.

But I've largely used older laptops so I'm not sure if the hardware, specifically, may have anything to do with it.