You made wrong decision. As I described in previous pages
MU-MIMO vs. XStream: The Coming Battle For Wi-Fi Airtime - Another Approach, The Choice - SmallNetBuilder
Asus RT87U MU-MIMO has failed because no client support up to now and Netgear R8000 also failed because it's actually old technology so both are marketing gimmicks
XStream's advertised 3200 Mbps link rate represents the addition of
two 1300 Mbps maximum link rates for the 5 GHz radios and one 600 Mbps link rate for 2.4 GHz.
So 1300 Mbps is the
highest link rate you will see
from any device connected
to an
AC3200 router.XStream is still
fundamentally a 3x3 architecture.
I still believe AC1900 technology thus I'm using Netgear R7000 but beta firmware because official firmware always have problem.
R7000 - AC1900 Nighthawk - NETGEAR Forums
Curious with R8000? read forum first
R8000 - AC3200 Nighthawk X6 - NETGEAR Forums
NETGEAR R8000 Nighthawk X6 Review: Part 2 - SmallNetBuilder
AC1900 routers' 2.4 GHz average throughput, there is a definite clustering of results in the low-to-mid 90 Mbps range on downlink. Still,
there is a significant difference (
you sure? you mean 95Mbps and 87Mbps 
) between the retested original R7000 Nighthawk and the R8000 for downlink; not so much on uplink. Again marketing gimmick
The
5 GHz comparison finds a wider range of results. The big surprise here is that the
R7000 does significantly better than the R8000 on downlink and uplink. We'll explore this further in the throughput vs. attenuation plots.