@Tony I appreciate the education... One more question and I'll leave you alone. Other than speed, is there an advantag / disadvantage to using the RE220 (w/ OneMesh) vs RE450 (W/0)? Thanks!

@Tony TP-Link Archer A7 is the router I use. It has 13 clients on it. I'm not sure how to check what speed I'm getting from each of the bands, but running speedtest through a wifi connected device...

I would like to order a range extender, but am unclear what speed to purchase? How do I determine that? Like should I purchase the AC1200 or save some money and het the AC750? Thanks