I used his services three months ago to rank my website for "outsourcing pros and cons". It still ranks high.
The reason why he guarantees the result is because he knows how to analyze the competition on the keyword you give him. He won't accept a keyword that is too competitive.
And in the unlikely situation where he wouldn't deliver, my website protects because he won't receive your payment unless he delivers.
http://www.websightdesign.com/services/search-engine-optimiz...