Holidays and Exchanges

For those who do not know, there is space on the Internet where you can leave a contact for a possible exchange of houses / flats to stay on holiday abroad ... Me and my beautiful that very soon we will travel, take the initiative to let our contact, and we are really interested in doing emerged an exchange ... Most couples are gay ... Soon after the first proposal and I got a nice little in doubt of what the next step to take ... Obviously we can not go to somebody's house without having minimal information ... But then how should we proceed? Well, in response asking photos ... But it is always the feeling and the uncertainty of what the intent of who is on the side of there ... Maybe it was a good way to meet new people and in accordance with guidelines to guide the destiny ... It was also a cheaper solution ... But, after thinking about, or at the time we would have to be to sell our house, we stand back and give the idea .. Someone has already done?