Exactly. I think the writer is taking issue with trying to use it as a more exact science, and calls it out for being within 20% of the sale value 90% of the ti

Exactly. I think the writer is taking issue with trying to use it as a more exact science, and calls it out for being within 20% of the sale value 90% of the time, which I think is pretty reasonable considering the high amount of subjectivity in home purchasing.