I came across this site while surfing. I read about it when I was checking some tech news. It was an article talking about different words they tried and where these words were most searched for. "lonely" was most searched for in Ireland and guess what our dear Cairo appeared at the top of a list too though am not proud of that at all. Vist Google Trends and search for "sex" and see where Cairo is on the list !!!
Other than that, give it a try I really liked it !!