Is this map of Columbus neighborhoods accurate?

[Susan Tan]

https://www.niche.com/places-to-live/columbus-franklin-oh/ shows a map of the areas in Columbus. To what extent is this map accurate? Are certain C class areas in fact class D/F areas that you would never recommend investors to buy & hold in? I'm a buy & hold investor living in SF Bay Area and I invest in OH. I use realtor.com's crime map to identify the good vs. crime-ridden areas, too. cc @Remington Lyman @Robert Ellis