Yes, i have tried speed test against multiple devices to get a consistent read.
I've also made sure that the device i'm testing at the time is also connected by wifi on a channel capable above 100Mbits like "LAPTOP" device shown here:
the speedtest resulted in ~80Mbits on a 500Mbit (verified) service (i recently upgraded service)... again, ethernet hits 300-500 no problem on the same port and wire that the iap is using.
i have also updated firmware to 8.6.0.6_77124 (Digitally Signed - Production Build) for the iap-207. i know there's higher, but i think this is the highest recommended for the model.
how does yours test out?