This is another one of those movies that's neither here nor there when it comes to tone. On one hand, it seems to want to be a serious vigilante/revenge flick a la Death Wish, but it also wants to be an exploitative grindhouse shocker. As a result, it's too sleazy and ridiculous to be taken as a serious movie, but it's not sleazy enough to be entertaining as full on exploitation. The most graphic this movie ever gets is during the Vietnam flashback at the beginning.
Also worth mentioning, the first few scenes after the friend's murder are jarringly rushed. So first there's the scene where the friend is killed, then immediately afterwards it cuts to the Exterminator with the friend's wife at the park telling her he died, then it cuts to a goon tied up and the Exterminator threatening him with a blowtorch. So the problem isn't the pacing of the scenes themselves, it's more like there were a couple extra scenes that went missing post-production. Oh, and that gnarly-ass flamethrower on the cover... forget about it. The scene with the tied-up goon mentioned earlier is the only time you'll see it, and it's only used to threaten.
Also worth mentioning, the first few scenes after the friend's murder are jarringly rushed. So first there's the scene where the friend is killed, then immediately afterwards it cuts to the Exterminator with the friend's wife at the park telling her he died, then it cuts to a goon tied up and the Exterminator threatening him with a blowtorch. So the problem isn't the pacing of the scenes themselves, it's more like there were a couple extra scenes that went missing post-production. Oh, and that gnarly-ass flamethrower on the cover... forget about it. The scene with the tied-up goon mentioned earlier is the only time you'll see it, and it's only used to threaten.