Wow, thanks for the full review! Since we do offer the 14-day free trial on all plans, I could probably delay choosing a plan until you want to upgrade. Then it would just be a one-step sign-up.

We do only track new data; unfortunately there's no easy way to go back and links to your site from Twitter historically so we decided to be consistent with Facebook data. As a result you'll only see social interactions from the time you sign up going forward. Twitter data is real-time, and Facebook is polled on the hour. I will see if I can make that more clear.

We're definitely working hard to find what our biggest value prop will be. I think the features are there and we can iterate on them, but I definitely agree that we might not have nailed it yet.

I'll take a look at the Chrome calendar issue; on the other hand I'm glad that the sign-up was painless and that you like the design (blue on black aside).

Thanks again for the very thorough review!