It's very easy. Just as the title says, it will get your site on Google in days! Not only will you be listed on Google in days your site will receive highly targeted traffic. What is the point to get your website listed for some ridiculous keyword that no one searches for? You would just be wasting your time.
Not only will your website be listed on Google, but you will receive back links from hundreds of sites for free, and instantly with no work on your part. Why waste your time trying to trade links with webmasters when this method will automatically do it?
With increased back links your website will of course gain Google Page Rank.
