Good for you!
We were lucky with Delta, too (even though my first choice is SWA) for our upcoming trip, but I do have one "caution" for you............please keep checking your flights on their web page. Within a few months, our flight, flight numbers, seat assignments, etc. were changed, and we were never notified.
Luckily, the changes were minor, but if I hadn't picked up on them right away and called immediately, our seats would have been worse. Also, if you do have to speak to customer service, if you're not able to get your point across, ask for a supervisor; supervisors are usually in the US, while customer services is oursourced to India, and there can be a language barrier.
Don't mean to sound so down on Delta, but I found that I have to stay on top of them much more so than with SWA!
Now, all I have to worry about is my luggage making it to MCO................
11 more days 'til WDW...............
