A very thrilling book. Up to Crichton's usual standard of taking cutting edge technology and applying it creatively then everything goes awry. Read this and you will never look at bugs and soil in the same way as you do now. I couldn't put it down.
Although I have almost always enjoyed Michael Chricton's books in the past, I read about half of this one but found I couldn't suspend my disbelief (about half inch tall scientists running around in a jungle) long enough to finish this one.
I like Michael Crichton's works; they're entertaining and well written, even when they're predictable and somewhat formulaic. I enjoy Richard Preston's writing, too, so I should have liked this last work, begun by Crichton, completed by Preston. And I did, sometimes. There were quite a few imaginative scenes and a couple of pretty good characters. But frequently the story and people were cartoonish, and the dialog was awful. This one should have stayed in Crichton's "Notes for Stories" file and never seen publication.