Demo-Listen!

So, I am starting a monthly poll. This month, Sep 2010, the poll is how much would you pay to have an industry professional listen to and critique your band's demo?

There are many sites that offer this service like www.taxi.com and www.citylightsent.com just to name a few. Have you or anyone you know used these services or ones like it? How was the experience? Could it be improved somehow?

Thanks for your feedback,

Blasko