This one's… really creepy. I've always had kind of a love/hate relationship with grisly things like this (I remember being fascinated by the movies InnerSpace and The Fantastic Voyage when I was a kid.) This is the kind of thing that makes my skin crawl, but at the same time I find it so fascinating that I can't keep myself from looking.
And it's not just gory. I find that kind of thing boring. These guys were… mad scientists. Doctor Frankenstein's spiritual successors, except they were perfectly sane (although I can see hw that point could be debatable) and doing it for profit.
In other words, I think this one is really, really good. I'd also like to know where the idea for it came from.