All performance tests were done with firmware 1.00B19 (router) 1.00B11 (extender) using select tests from the Version 10 Router process.
Covr did pretty well in the iperf3 tests, posting throughput of 929 Mbps and 941 Mbps for WAN to LAN and LAN to WAN respectively. This puts it in the upper tier of Wi-Fi systems.
Routing throughput - iperf3 method
The HTTP test method is better at showing performance differences under load, downloading four different size image files with 2K concurrent connections. The plot below compares Covr with Orbi "mini" and TP-Link's Deco M5. It's pretty clear Covr doesn't handle concurrent HTTP traffic loads as well as the other two products.
Routing throughput - HTTP Score comparison - WAN to LAN
Plot key file size: [A] 2 KB, [B] 10 KB, [C] 108 KB and [D] 759 KB file
Covr does a bit better on uplink. Reference throughput, i.e. 100%, is 918 Mbps. So the best Covr does with the largest filesize, which should produce the highest throughput, is around 25 Mbps down and 38 Mbps up.
Routing throughput - HTTP Score comparison - LAN to WAN
Covr was run through our new Wi-Fi System test process using with firmware 1.00B19 (router) 1.00B11 (extender). We let Covr use whichever channels and bandwidth it chose. The photo below shows Covr router was a tight fit in the octoBox-18 test chamber.
D-Link Covr router in test chamber
The Covr extender didn't fill the space as much.
D-Link Covr extender in test chamber
I'll be comparing Covr with the wall-plugged satellite Orbi mini (RBK30) and TP-Link Deco M5. Since both Orbi mini and Covr and extender-type systems, they are more directly comparable. I'm including the three-node mesh-flavor TP-Link in the comparison mainly due to its low price.
Throughput vs. Attenuation (RvR)
The Rate vs. Range or RvR benchmarks look at how throughput varies with decreasing signal. This test is done on the root node, so is a best-case view and does not include any effects from backhaul links.
The 2.4 GHz downlink plot shows Covr holding its own with Orbi mini, except for a few dips in its curve
Throughput vs. Attenuation - 2.4 GHz downlink
2.4 GHz uplink shows Covr besting both TP-Link and NETGEAR until joining both at the 42 dB test onward.
Throughput vs. Attenuation - 2.4 GHz uplink
5 GHz downlink shows Covr's peak throughput a good 150 Mbps lower than both Deco and Orbi mini, but going the full distance of the test range.
Throughput vs. Attenuation - 5 GHz downlink
5 GHz uplink shows Covr running well above Deco and Orbi mini for most all of its test range.
Throughput vs. Attenuation - 5 GHz uplink
Since Covr router is a four-stream platform vs. the two streams in all other Wi-Fi system products, it should have a slight edge on coverage. This means you should be able to place Cover extender a bit farther away from Covr router, still get decent throughput and perhaps a bit more range/coverage.