under what circumstance would you recommend wds?
sorry for the delayed response...
I'd reccomend WDS only in the following circumstance:
You have an AP, and a small group (usually under 10) of potential customers in a small area, but only one customer can actually get a signal.
put up a CPE, configure it as station-wds and connect to the AP, then bridge wlan1 and ether1. Setup another small AP so the other potential customers are able to connect to the new "MicroCell", configure that as a normal AP with wlan1 bridged to ether1, and then connect ether1 to ether1 of the CPE (this could also be done with a single board with 2 radios, but they need to be on different bands otherwise they will interfere too much with each other)
Then configure the CPEs that connect to the MicroCell as station-psudobridge, and the WDS uplink will connect them all to the tower.