Douglas Adams is not an acquired taste. You either love him more than your own towel, or you just don't get it. There is very little grey area.
Personnaly, I still can't help laughing out loud at the Preface to the first book:
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Deep in the uncharted backwaters of the western spiral arm of the galaxy lies a small unregarded yellow sun. Orbiting this sun at a distance of XXX million miles is a tiny little blue-green planet whose ape-descended life forms are so amazingly primitive that they still believe digital watches are a pretty neat idea... >>
I know that's not exact, but it's still not bad for a guy who hasn't read the book for two years or so.
Also, it is not science-fiction. Douglas Adams is (sorry, was) not a science-fiction author. If your looking for sf, move along.
If I may, let me suggest Douglas' oft-overlooked non-fiction offering,
Last Chance to See. A wholly remarkable book about Douglas' romps through several descriptions of wilderness with zologist friend Mark Carwardine, looking for examples of almost-extinct animals and birds.
BTW, don't give up on HHGTTG until you get to the sperm whale. If you don't laugh at that, be sure that the rest of Douglas Adams' faithful will have given up on you.
Regards,
Craig