Zillow has a long way to go to get the valuation correctly. It’s still in beta stage after all. I use it for its sold history. Which is quite useful to see who need to sell and who have room to work on the price, if they didn’t refi and pulled cash out already. I think it’s a very good platform though. If they combined with something like ziprealty.com, it would be amazing source for hunting for house and find info.
