I'm looking into using Affiliate Pro and was wondering if anyone had some insight into it

It's a good affiliate management system, the price is reasonable too.

Affiliate Pro is good, it provides advanced tracking that ensures maximum reliability. Detailed information come into view for all commission that is tracked, as well as the first and last clicks that led to the receive commissions, the IP address and the page from which the user came to your website.

The new version has a innovative new user interface. Post Affiliate Pro’s 'Blue Aero' theme looks and behaves like a desktop application, with a start button, gadgets, menu, sidebar and quick launch. in addition, there are many other themes to choose from.