Have not seen a thread on this hardware yet so starting here. Bought two of these to compliment my DIR-868L. 1 in garage, 1 in family room.
1) Great Coverage! Absolutely amazing. My AC network throughput at the sketchy corners went from 4mbps to 144mbps
2) HTML 5 interface, very user friendly.
3) Great size!
Now onto some of the things I was hoping to see and some small issues.
1) Dual networks to extend. Would like to extend my private and guest networks
2) Channelize the extenders. While 5GHz has no overlapping channels, my 2.4GHz does and these all appear to be locked to the same channel when using inSSIDer and Channelyzer to build out the network.
3) Firmware update is something to be resolved. Auto updated to 1.01 with a build date of 12/31/2013 but it keeps prompting to update to 1.01 with a build date of 10/24/2013. Additionally, the most recent posted firmware on the support page is 1.00 B21. The release notes are also empty with what is resolved.