Buying in Frisco ISD

[Viral Mehta]

Hello everyone, 

My offer recently got accepted in a house in Frisco. I was under the impression that Frisco ISD is amazing and that was one of my key criteria as this will be an investment property. However, when I look at the great school ratings of the 3 actual schools for this house - the ratings are average (5/7/7). 

How should I think about the schools? Should I go by the ISD reputation or the school ratings? Is great school ratings the best place to look at? Would love your advice on this, thank you for your help.