In terms of the look and feel, it's fantastic and I like the underlying ideas. It plods in terms of story development and the characters other than HAL are bland as all hell.
The Quiet Earth, the one I cited, is a little-known gem from Down Under (NZ, I think) about a small group who survive the apparent end of the world. Basically everyone but people on the brink of death disappears. It has an ending every bit as engimatic as 2001's. Of course, there's the possibility that rather than them being the survivors of a catastrophe, the whole thing is an NDE or afterlife. I should probably read the original novel someday to see if the author is any clearer on that point.