The method used by that article demonstrates the simple "universal repeater" mode of DD-WRT. It has the advantage of working with _any_ primary AP device, but does require a second, separate SSID for the repeater. No seamless roaming from one to the other.

Handy, though -- I have two "Blanc" branded routers here (paid less than $20 each, four years ago), that also have the "universal repeater" function. Useful.

Using AP+WDS mode, as I did in PEI, requires that all devices be nearly identical. But it has the advantages of using a common SSID and channel for all devices, showing up as a single AP in the wireless tab on most software, and seamless roaming between the APs -- the user only sees a single, huge, access point covering the entire property.

Cheers