How bad is it? It's one of the worst 1980's Linda Blair films, so pretty bad.
Should you see it? Yup.
Though it was released in 1989, I don't know anyone who saw this until a decade later. The cast is what draws people: Linda Blair, Dan Haggerty and Troy Donahue. he films about cryogenically preserved bodies getting reanimated into zombies by lightning. In the end, they're stopped with liquid nitrogen, but before that you get treated to the most hackneyed plot, ridiculous dialogue and dodgy direction you could ask for. It looks like Blair was replaced with a stand-in for most of the last half of the movie.