Here are the results* from a 100-click solo ad I bought from Kevin Brown. You can find more reviews in my solo ad directory.
Clicks bought: 100
Clicks received: 111
Optins: 48
Optin percentage: 43%
% Tier 1: 59%
Sales: 2
Cost Per Optin: $.33
*These are the results from my squeeze page and sales funnel. Your results may vary from mine.