This is not a book I would likely have picked up to read on my own. I got it via the Nook Free Fridays program from Barnes & Noble, and hey, free books. 
 This was a very gritty, very urban fantasy set in LA/Hollywood. The main character has been in Hell (alive) for eleven years and has come back seeking revenge on the people who sent him there. But of course, there are lots of people who don't want him to succeed--or want him to work with them in order to succeed--so it's not as easy as it sounds. 
 The work reminded me quite a bit of the Dresden Files novels, except not quite as family-friendly. I was a bit confused (and still am, actually) about the title; the words "Sandman Slim" don't appear until nearly halfway through the book, and at that point the main character has no idea why people are calling him that. He never does find out why this is his nickname in Hell, though he uses it as leverage since it seems to make people nervous. I assume that some explanation will be forthcoming in the next book, though I have no immediate plans to read it.