Fun zombie flick.
Classic 80's B-film look.
Besides hiring all the extras and the gore props, looks like you could have filmed it yourself.
Music sounded like some 80's bedroom keyboard job.
Not the best acting.
But, the fact that it turned in 10 times its budget says it all doesn't it. It was a success even though it wasn't a perfect or even great film by any standard. It just goes to show, a successful film does not need to be "perfect" or "great" or even profound. It just needs to be fun.