graeme_p - 3:32 pm on Aug 17, 2013 (gmt 0)
Been up for over an year, it used to have two pages in 2012 and three earlier this year. Homepage text has changed substantially, but deals with the same topic.
No idea when it started ranking well.
I was not expecting the site to rank worse because it was an exact match, but I cannot see any other reason it ranks so well.