I thought she was a terrible
villain. She wasn't threatening in the slightest. She was actually very comical, and not in a good way. She was more of a spoof villain that anything.
When you have a female villain that works, such as in Fatal Attraction, it can be very eerie, uncomfortable, and downright crazy, but Spielberg refused to go there and kept things ultra light, so what we ended up with more of a Dick Dastardly-type villain that was just laughable.