Track Mashup Submit Mashup Mashup: Zillow.com Comments Real Estate, Mapping Sophisticated home valuation tools. 65 million listings. Extensive data on comprables, many search and sort options. Summary Comments Followers Summary Comments Followers Comments (2) Comments(2) Marc Robson (not verified) 3:18 PM Jan. 10 2007 Worthless. When I looked at a 6 year old, 4 bedroom, 2.5 bath, 2800 sq ft home, ZILLOW.com estimated its value by comparing to 20 year old, 3 bed, 2 bath 1800 sq ft homes. the Zestimate was in my price range. Imagine my disappointment at spending so much time researching only to see the house had just sold for 40% higher than the Zestimate. Will NOT go to Zillow again. michael 8:14 AM Jan. 30 2008 I've never used Zillow's features but reading previous comment warned me not to do this. Thanks.