I recently got ADSL2+ installed an use an Archer D7 as the Modem/Router. The WiFi from the Archer is good, but unfortunately the room where the phone socket comes in is an extension and is separated from the rest of the house by two brick walls (one wall of the room, another wall of the front entry area).
I have a R7000 that I could use as either a wired in WiFi access point via powerline adapters, or as a WiFi repeater if DD-WRT allows. The other option would be to get a powerline adapter that terminates into an AC WiFi access point - if such a device even exists? My preferred option is via powerline, as then I'll use the R7000's other LAN ports to plug in my Steamlink, Apple TV, PS3 etc.
Basically looking for advice:
If I go for the powerline option, which set of adapters are decent (and not too expensive)?
Does a powerline device with a built in AC WiFi access point exist?
Are WiFi repeaters as bad as I have been made to believe?
Powerline with WiFi access does exist. I think you want one of these:
https://www.kogan.com/au/buy/tp-link-300mbps-av500-wifi-powe…
Works fine for me, providing wifi access in my garage.