I was rather impressed too. Also, GoWiFi didn't give me jellybeans this time (I guess since they used Jellybeans as packing material with one of my orders they felt I had a lifetime supply?).
Also, my network is getting almost too overkill. I have a local webpage of all my web managed devices: https://puu.sh/oCWKe/5548d99ca5.png
Will test performance via ipref when I get a spare moment. I am not sure if this is something I can just run in a VM container or if I should get a laptop connected via Gigabit ethernet to run it instead (have not used ipref in a while). Also, I found out my testing maxed out the Disk IO of my Microserver so it may be even better than the tests above.
I did have my xclaim on a fixed channel where the e400 I've left on auto. Nice the e400 supports band steering of which the xclaim doesn't (yet).
Band steering was the major point i jumped at on the E400. Your network is hardly overkill! I too am looking at local listings of all the webassets my network is built up of.
i go as far as to having a pretty intertwined ELK build aggregating logs. - ironically this has exposed a few interesting things in Vodafones network too.
Iperf should be okay in a VM, one could the extra virtualization overhead, but thats pretty minimal. - Given im not so keen on openVZs stack though.