Me and my family (wife + baby) were non-revving out of MHT-DTW, the Delta DC-9 went out with open seats but not us - weight critical. We got Zed fares on SWA, but time was very tight. I went to the Delta counter, got our checked luggage, literally ran over to SWA, where I checked in via the Kiosk (after having a very pleasant phone conversation with a res agent about available options, and making a listing). The kiosk spit out all sorts of passes to get to the gate - but I still had to check the luggage. The agent was very nice about making sure it would get to the plane (with limited time now), checking the load (and saying it would be tight). She suggested that we put the baby on my wife's lap, as it would be one less seat we needed. She made the change to the reservation - all in minutes and without any attitude that we seem to have with some Delta agents.

At the gate, the agent was again very pleasant, especially as I showed up halfway through boarding. She just said, "we'll see - but you never know!" With three minutes to push, she said, "we've got one seat - you want the jumpseat?" In the manner of 30 seconds, she had cleared my wife into the available seat, put me on the jumpseat and said, "Go!". We boarded the plane, I went left, she went right. 2 minutes later, we pushed from the gate, on-time. No attitude, no "it's too late".

After we got to MDW, as soon as I opened the cockpit door, the FA there said, "oh, you have the cutest baby" and proceeded to tell how she had played with her, walked up and down the aisle with her and generally mom and baby had a great time. (And my wife was towards the back of the plane, not right there by the door).

I guess my takeaway was that if SWA is that nice and friendly to a non-rev, imagine how well the paying customers are treated? I've been in the business a number of years, so it's not just a "wow - someone treated a non-rev nice".