Though we all dont like USB 802.11ac NICs, they are here to stay for some time.
So, I did some basic testing with Netgear A6200 and the results were good to start off with.
It was using MCS 6, 80 MHz and 2 Spatial streams, giving a link rate of 526.5 Mbps and was pretty stable.
I could see a bunch of troubleshooting commands on the controller side for checking the client connectivity, which will be very useful for checking performances of 802.11ac clients.
I could see that the TX rate was 866 Mbps which was the maximum for 2 spatial streams and the Rx rate was 526 Mbps.
I did some moving around and wanted to see how many frames were sent and received with which datarate. The command that you can use for this is "show ap debug radio-stats". Below output gave good amount of information about the same.
More information about the client health was also available from the webUI.