Consider this:
Zillow is still in its early testing phase. The Zestimate will get better with time. These are the same guys that founded Expedia.com so they know what they are doing.
The best things about Zillow is that it shows you the sales history and most recent property tax. For FREEE!!! This makes it relatively easy to spot the flippers in your neighborhood or the soon to be bankrupt HELOCers.
