Ok, let me do a simple and honest review about this service.
I can see my traffics shot up in the past 2 days, however it was about extra 1500 in 2 days and i did not see 2000 traffics plus the bonus of 2000.
According to my Google Analytics, most traffics were came from one social bookmarking. When analyzed the AdSense CTR, the figure was 0 as compare to my normal SE traffics in these 2 days, the CTR was 0.74%. When analyzed the average time on site, these traffics were 0:28min as compare to normal SE traffics 1:31min.
In conclusion, this service was not delivered as promised and the traffic has no value to me. However for those who want to generate traffics for your site to look good, this might be a good choice.