Creature features are a tough thing to pull off. Stungnado here may not be the best of the bunch (Eight legged Freaks was a lot of fun to name one in recent memories that got it right), but it does have a couple of moments. Seeing the duo of Lance Henriksen and Clifton Collins can always be fun. Even if they are underwritten characters. But everything is underwritten here.
So try to take joy of simple things. Like the fact the actress playing a catering boss is called Cook. If you can laugh at that, you may find some funny moments in this too. Then again there is a lot wrong with it too, so our main hero is a bit bland, the love story doesn't really work. But the effects are decent and if you don't have high expectations it can be a fun ride of sorts