How bad is it? It's a pretty good horror film with some bad special effects.
Should you see it? Yes. It's not so-bad-it's-good, though.
A woman returns to her cabin in the woods home, only to find that mutant geckos have begun to attack people. Yes, geckos - those innocuous little lizards - in large numbers and ravenous for flesh. The critters themselves are obviously rubber and some of the scenes with them are laughable (there's one getting squished under foot that I remember especially). The hands of the guy throwing them at the actors are sometimes visible. That said, it's a pretty tightly constructed horror film with some decent acting and direction, despite some quibbles (like lizards being active in the cold of a snowstom).