lugarcertoimoveis.com.br é seguro?

This business was promoted by small amounts of unsolicited email from 2010 to 2012. The owner claims that "my site does not send more spam". As it has been 5 years since I last saw any spam advertising this site, I have revised this comment. One possible point of concern is that the three positive reviews of the site appear to have been written by the owner and/or his associates. One highly positive review comes from the owner; the others are from new accounts that were apparently created just for the purpose of writing a positive review of the site (each has only posted a single comment to MyWoT).