Zillow rent rate & appreciation projection reliable?

[Diane Tycangco]

Hi everyone!  Was wondering if the rent estimate Zillow puts at the bottom of the sale listing is reliable/realistic vs Rentometer?  I notice that Rentometer's average and/or median is higher most of the time compared to Zillow.  Also, zillow also has a blurb that usually says that a property has appreciated x% this year and this area is projected to appreciate x% next year.  Is their prediction usually correct?

Thanks!