How bad is it? It was produced by Jim Wynorski and Fred Olen Ray. That can't be good.
Should you see it? No. You've seen it before, done better, often.
In the most tired of plots, an astronaut returning to Earth becomes a monster, a monster very obviously inspired by "Alien." Scientists and a reporter (and her boyfriend) search for him in the Florida swamps (which look like maybe Oregon) and eventually kill it by exploding swamp gas. Joe Estevez plays ground control. There's orange spores spreading in the swamp. Topless scenes early are not repeated. Armadillo attack. Alien worm bursts from a neck. The alien takes the form of an orange nacho - sort of. In the end, when the monster's killed, no one seems concerned by all the orange spores any more. The simple plot follows fairly logically, but it's obvious that everyone involved knows this is trash and treat it as such.