I found the past threads that talk about specific offers (ex: Holiay Inn), but I just want to know in GENERAL who has been able to take advantage of these promotions. I called to redeem one today and it is a joke. He said the fares are too low to qualify ($345.00 for three months in advance is not low to me)and only one airline qualifies, etc., etc. He also said certain times were sold out, but they are not (according to Delta website).

Am I correct in assuming the only way these are of any use is for last minute bookings when the fares are MUCH higher?

These offers are more frustrating than anything else.