Good quality top tier traffic. No sales though and missed out on 4 stars rating because I had a low opt-in rate. Another vendor proved to be more reliable in this instance with a much higher opt-in rate so I know my landing page converts.
Stefan is a professional. He manages his business And his Stats Very well. He is FAST and he over delivers clicks. I did not get the results I was looking for, but as we All know in marketing Results are Not guaranteed.