Hated it the first time yet watched it again because I was so shocked that someone I know actually bought the DVD. Still hate it for devaluing the exceptionally rare female captain by sexualizing her, for killing off the magnificent Terence Stamp before Simon Baker, and for wasting our time with an unlikely homicidal robot subplot (what exploratory space mission ever needs a man-killing rover???).
I thought this was supposed to be a sci-fi horror movie? Instead, it turned out to be a boring, half-baked Mars mission procedural. It's definitely not a horror movie. It's more like a bad Star Trek episode. Also, there are space aphids... Seriously. Space aphids. Couldn't the writers have thought of something a little more scary than space aphids!?
Its basis on scientific knowledge is scant at best, but it still remains entertaining. Decent special effects for the AMEE creature (for the time) and some great sequences do happen - namely, Tom Sizemore's incendiary nobility. Not as interesting as "Mission to Mars" (which was of the same year) but still fun enough to want to see it through til the end.