It's the first book by Gaiman I've read so I can't say I have much perspective, but generally speaking I really enjoyed it. Fun and engaging fantasy, with some more "adult" elements than I expected.
That and Anansi Boys (another by Mr. Gaiman) have been on my shelf for awhile...I just haven't been in a fantasy mood as of late.
You might want to check out the synopsis for Good Omens, it's more of a comedy, and imo one of the most brilliant plots of all time. The book just didn't click with me as I've heard it had for many others. Most of my favorite authors write very dark fiction, and Gaiman seems to toy with dark fiction and turn it into a comedy, though I feel he leans a little more towards an optimist. Seems like an interesting author, I'm curious if he's just not for me or maybe I just started with the wrong book (Seeing as how he wrote it with another author, Terry Pratchett.)
Tl;dr I want to read more Gaiman at some point