I'm in Charlotte, NC and Mr. Ewing It's built right into our MLS system. I use it all the time! It's quite helpfull when you need all the information about a property on one sheet of paper. Also I use it when an agent only publishes one photo in the MLS. If it's an active listing it'll pull all the previous listings for you without you leaving the page and searching the address in the MLS directly to see if any of the other listings offers additional photos.
In searching for foreclosures and general information on a property, if you know any of the search paramaters, it can be quite helpful and should only be used as a guide as I have seen the square footage to be a little off. Good question!
Wilkinson & Associates