I stand corrected re the error message that I got the first go-round. The error was mine. My flip comment was a propos of the shill veiled ads we often see in one-off posts on these boards (NOT by the people who are up front about who they represent).
In penance, I just banged SW2358 around for Economy at some of my upcoming destinations, comparing it with Orbitz (didn't try any other affinity codes), for weekdays and weekends. Sure enough -- this is $40 base across the board, all places, all dates, weekday and weekend. Great when compared with the $83 Economy weekday base rate, which I do sometimes see (from Dollar? ouch!). Not so great vs. typical weekend rates of ~$20 base.
The code yields $220 Economy weekly base, across the board. It does save a couple of bucks vs. codeless rates for summer weeks.
In short, since it's consistent, if $40 and $220 are better than what you can get otherwise, do it.
