Just excellent - so good I keep lending my copy to people and have to buy new ones. No spoilers, but its the story of a writer in Hell - and really well done. Its a good adventure, but tackles the vexed diabolic questions of 'why Hell''how do I get out of here' and 'how come I, er, seem to know everyone?' really interestingly. Worth it just for the red hot offices where damned(literally)former bureaucrats burn for eternity...
I get the impression its a 'light' work by Niven and Pournelle, but benefits from it, because neither author is at their best with their attempts to be deep and meaningful in their doorstop trilogies.