we've changed prices four times over the years...your learn something new all the time, and we are constantly testing new things. Though...i'll tell you something...we tend to test a million different pricing page designs, and rarely change our whole pricing model. that said, the real lift comes from changing your model - not your design...and I guess this article proves that out as well.

So have you seen the same amount of success with your freemiums as mailchimp?