This gets a big +1 in my book. My jaw dropped when this application buzzed through keywords and was finding rankings all the way down to 500. It took something like 20 seconds for 20 keywords. WTF! What a beast.
I spot checked some rankings and they were right on the money.
I think this is better than all the others out there. But to be like one of your tough teachers in high school, I give you an A- only for one reason: No Bing/Yahoo. I have plenty of Google-damaged properties that make me $1,000's on Bing/Yahoo. You add that feature, and you get the full A+ from me. There's probably a reason you aren't including them?
But to be clear, you get an A++ on how you handle Google and Google local. Really impressive software.