It's well worth trying.Will try it but a response like: of course it is going to underperform given the toaster-grade WiFi chip in there really didn't help reinforce my confidence in the product.
My mesh network mostly uses combined 5/2.4 MHz bands.
Switching the Poly to use the 2.4 only band that I use for some IOT devices (but isn't otherwise isolated) helped a lot - at least on the old firmware.