Edgetho: Is there anyone who never played Arcanum before, perhaps isn't even such a hardcore RPG fan, but bought it now on GOG and is awestruck how much fun it is? Those are the opinions that can really motivate a new buy.
BTW., I never got into Fallout 2. Story, dialogues don't motivate me, there are no directions, and it takes hours to do accomplish even the littlest thing. But Arcanum seems to have stronger dialogue, characters and story, so...
(I played through BG2 and PS:T, but Fallout 2 is just a drag.)
I've never played Arcanum before, but I just bought it and I'm downloading it now, but if what everyone says about "any fan of Fallout and Fallout 2 should love it" carry any real merit, then I expect I'll find it very entertaining, especially since Fallout and Fallout 2 are, in my opinion, 2 of the greatest rpgs every invented. Anyway, you wanted the opinion of someone who has never played it before, so after I play it for awhile, I'll come back here and let you know what I thought of it.