YES! Space Hulk rocks.
I played it years ago and I just found my old copy in my parent's cupboard and brought it home with me. It's a really good game, tense and balanced, and difficult for both sides. I introduced my girlfriend to it coz she likes boardgames and I thought it would be faster to teach her than 40k.
Now every day it's "wanna play Space Hulk? I wanna play Space Hulk!" She loves it more than I do dammit.
Unfortunately my missions booklet is lost, so we have to invent our own. I have to flashback to being 13 years old to try and create balanced missions.