I used couchsurfing in USA in Miami and NY (2012)...it was my first and last experience.It was just amazing to meet people with different life,experience,culture.Great :)....And why?Sometimes u just have no people for travelling,so u travel alone,so it is good to know someone who can host u and show u amazing places or just advice u what to see.

Jo Nesbo Bridget Jones diary Colombo