Opinion on 2.4 vs 5.8ghz vs Dual Band

[marshvet]

While I was updating a newly returned "repaired/replaced" Air 2S, there were little hints scrolling along the bottom of the screen. One of them pointed out that at 2.4ghz, you can travel further. To be honest, I had never paid attention to this so now I wonder - In everyone's experience, which do you prefer of the 3? What are the pro's and con's of each? Thanks in advance.

 

[Killowatt]

I'm new, but if memory serves me right, 2.4ghz is for distance, 5ghz is for nearby. The unit decides on it's own when in auto.