We did. And we were paying enough (6 digit monthly bill, not huge but significant I would think) that we did get some nice treatment, although we were definitely not a big enough customer apparently. We adopted a lot of things right away when it came out (ie windows instances, elb). I think that was a mistake and lead to a lot of issues that resulted in responses acting like its not a problem until 6 months later when a fix came out. EC2 was a lot better then my experiences with Terremark though, but we were definitely pennies to them.