Dollar signs completely throw the survey off. I have one question with 4 dollar amounts, and when I view the survey results, none of the responses under that question appear. Even if I then go and remove the dollar signs from the front of the dollar figures, I get a fraction of the actual responses I've received (for example, that question currently has one response, when all others have 21).
I'm sure it's a php/mysql thing, but I'd be willing to bet that it could be fixed.
Also, does there really need to be 9 tables for this plugin? That seems more complicated than necessary, and I can't tell which of them actually contains the votes. I thought I might at least still be able to get the data that this plugin swallowed up, but the tables are incomprehensible.
I've given this plugin 2 stars. I like the simplicity (at least on the front-end), but there's too many bugs for something that should be so uncomplicated.