This is a decent replacement or substitute for SH. It's the same theme, idea, and general game play. Just needs an expansion or two and it'd actually be better than SH....IMO....for a quick travel game.
I would agree with this. While they have the same theme and feel, there are substantial differences in the underlying mechanics which I think are almost always in the favor of Forlorn: Hope. The only thing really I miss about Space Hulk is the ability to destroy doors, but because of the range and interrupt attack mechanics in F:H it isn't a big deal. The blip system in SH was good for creating a certain amount of mystery and tension, but it also added a layer of complexity which I don't miss.
So the only real advantages to SH are component quality (which is balanced by the difference in cost), the number of scenarios, and the modular tiles. So I agree with Bill. An expansion or two would be enough to make F:H better than SH in almost every way.