This movie has quite a few years on it's neck by now. Even if the CGI looks a bit funny and the movement of the aliens could be a lot better, I still love this movie.
There is suspense, plenty of action, all the one-liners, that was common back in the 80's and 90's, you could possibly need. Nasty monsters and a kick ass heroine that is more badass than most men from that same period.
The suspense is enhanced with great sounds and a staging area that is perfect for claustrophobic monster attacks.
I simply love this movie.