Never Mind The Wait, Doom 3 Mod Adds New Co-op Options
I can't speak from personal experience, but my understanding is that Hell is kind of a terrible place. First off, there's brimstone everywhere, which is actually just sulfur, meaning you can't go more than 30 seconds without getting a whiff of Satan's nether-regions. Besides that, everything's insanely hot all of the time. It's sort of like Burning Man, except you can't go home at the end.