Damn, I recently purchased an annual subscription for Ranktools and now feel in love with Screpy. This is the SEO and website analytics I've been dreaming about. All the essential bases are checked, and the dashboard is, at least for me, easy to read and covering the key aspects of my sites. This is so important, as I often find myself with other tools clicking through menus to arrive at the metric I want to see.
One suggestion: The name isn't an excellent choice. When I tell people to check out Screpy, they constantly, I mean, all the time, ask me whether it's spelling like "crappy." Screpy isn't crappy at all. So that negative association isn't in your branding interest (and it might stick in the mind of potential users when accessing your site).