[_qbjt]

Because it helps your users save time, Magic increases conversion rates and makes the web easier to use.

Honestly, how much time do you really save by auto completing a couple of fields? This seems like a solution in search of a problem.

Also, while I don't have the data to speak for other users, I personally don't see myself paying for any service that presents my own personal information to me before I even know what the fuck it is.