I’ve been able to find every property I’ve searched for, including some that Zillow does not have, especially commercial properties and of course non-MLS sales. I can tell SDlookup has been improving their search engine – when it first launched it was very particular about how you had to enter the address, but now it’s much smarter. I love this site, especially how you can post comments on specific properties, and you don’t have to deal with all the retarded secret code word things on Zillow.