There is no utility shipped with the product or available for download from the product's support page. But since it uses the QCA7500, TRENDnet's PowerPacket Utility available from the TPL-420E2K's support page worked just fine with the PL1200. Near as I can tell, the 126.96.36.1995-03-20141016 firmware is the same used on the TRENDnet TPL-420E2K. The 884 Mbps link rate shown is with two adapters plugged into the same unfiltered power strip.
NETGEAR PL1200 info
I pulled all four MIMO AV2 class products tested so far into the comparison charts, i.e. the PL1200, TRENDnet TPL-420E2K, D-Link DHP-701AV and ZyXEL PLA5405KIT. Note the D-Link is the only one of this group using Broadcom's BCM60500 AV2 MIMO device. The other three use QCA's QCA7500.
The Downlink Throughput plot below shows the PL1200's same outlet 391 Mbps Location A throughput second only to TRENDnet's TPL-420E2K, which remains on shipment hold due to manufacturing problems. But in the other two locations, the PL1200 matches the other QCA-based products. Only in Location C does the Broadcom-based D-Link shine.
Downlink throughput comparison
Looking at the composite IxChariot downlink plot shows nice steady throughput in all three locations. The jump at the beginning of the plot is the IxChariot Nagle's algorithm quirk.
Downlink throughput composite
For uplink, the PL1200 isn't the best of the bunch in any of the three test locations, maxing out at only 362 Mbps.
Uplink throughput comparison
The uplink IxChariot plot shows high variation in Location A, but smooth sailing in the other two test locations.
Uplink throughput IxChariot composite
The PL1200's simultaneous up /downlink IxChariot plot shows higher average downlink throughput than uplink, but both battling for dominance. Still, the 460 Mbps total throughput is a nice increase from the sub 400 Mbps unidirectional results.
IxChariot simultaneous up/downlink
Adding another simultaneous stream pair gained another 20 Mbps or so for 482 Mbps of total throughput.