It is an old-fashioned B-action movie with good stunt work, brutal blood effects and gruesome death scenes. It is one of the few better "Robocop / Terminator" rip-offs out there. Weak comedy one-liners and attempts to humanize Van Damme's character in a "Terminator 2" story line were bad choices though.
When I was younger, I always wondered if Dolph Lundgren and Jean Claude van Damme had a fight to see who got first billing on this one. I don't think they did because I reckon Dolph would have taken JCVD. This is still great, by the way, and Roland Emmerich's best film ahead of Stargate, which is his only other good film.
Probably one of the only Roland Emmerich I've seen in the last few years which has any good qualities to it. Dolph Lundgren's insane speech about Vietnam in a supermarket as a comrade is eating raw meat in the background was such an amusing and strange sight its the highlight of the whole film.