I think it's definitely worth the money. I've been playing around with it since yesterday and I love the results I've been getting so far. I don't have to juggle multiple lights around trying to achieve the same results.

And the image I posted above, I set that up in about 15 minutes. Then I was able to adjust the lights because it was a bit bright without stopping the rendering. I also like the fact that it gives even the Poser-specific scenes and props (that don't have DS-specific MATs) a totally new look as well. And having easy access to another renderer that gives great results is never a bad thing.

So I wouldn't take the advice of someone who actually hasn't tried it. ;)

EDIT: I also showed the above render to JSGraphics and he ended up buying the tool himself even though he's a Poser user. He loved the way his textures came out and wants to use it for his renders too.