I picked this one up quite awhile ago when it was free on Kindle. Some of the reviews said it was a bit like Red Dwarf's humor. I can see that. While I wasn't LLOLing (literally laughing out loud) for most of the book, it did present a few chuckles.
I wasn't sure if this was a 'real' book or some self-published thing someone put out on Kindle. It's real. In fact, there are at least 3 sequels as of 2012.