Looking for some feedback on the MSN adCenter and what people like or disslike about it? With Vista coming around the corner ... it might be beneficial to invest some time and money into the adCenter now

Any thoughts folks?

My company is a beta tester. We like adCenter a lot - allows some great targeting features, e.g. you can bid higher to show ads more frequently to visitors within certain demographics (gender, age), and times of day.

There's also a non-Microsoft site for adCenter users called adCenter Insider - http://www.adcenter-insider.com.