I used Couchsurfing few times and that was really awesome. I met amazing people, visited some cool places and had a lot of fun. Last time when I used it I was going to Paris. I went to Couchsurfing and found a place to stay. I thought the person was a girl, but when I arrived there was a man! He started telling me stories that girl was his sister and other stuff. Really!! Couchsurfing is not so safe as you might think! I refused to go anywhere with him and found myself a hotel. Who knows what could have happened!