Anytime you upgrade this product, it resets your AdSense publishers number to the plugin author's AdSense number. There's also a little feature that says "give back to EasyAdSense" or something like that... it has a percentage in it. By default this is set to 5%, which means even if you have your publisher's number in that box, 5% of ads will be the plugin author's.
This is both unethical, and a violation of AdSense TOS.
I will never use this plugin again, and will be posting a story on my blog urging people not to use this.