Any updates as to actual experiences in using these?
There is now - I just used mine!
Notes:
- The agent (Minneapolis center, GE/PE line) enjoyed the party.

- The DB410 was a new thing to her, too.
- She said the booking process was different/harder than usual.
- She had me hang on while she got a few things sorted out.
- She did not ask me to mail in the paper cert. ^
- I did still have to pay the $10 taxes/fees.
- It all showed up in "my reservations" right away. ^
Did anyone receive EQM/RDM?
Around the 15th of December, when I get back from visiting family and going to the
DC Air & Space Museum mini-DO, I hope to be able to report on whether I got any EQM, RDM, EUA, IFE, NWA, TSA, VDB, T&A, or
whatever out of the deal.
I'm doing HNL-LAX on DL (paid for entirely with a bump voucher, with money left over) and will end up way over the 120K EEP threshold as a result, so I won't
need miles from the NWA portion of the trip.
Is there a cash value as with the normal VDB free ticket voucher?
No. This is a "use-it-or-lose-it" that's good only for a free K-bucket fare RT within US48/Alaska/Canada/Mexico/Caribbean, or within Asia/Micronesia. And I'll finish my travel about 2 weeks before it would have expired. Go, me!
Oh, and hey, from the end of the recorded voice until the GE/PE agent answered was a whole
twenty-five seconds! That's about 5 times longer than usual - are they having staffing issues at the call center?
(Then I had to call DL back and ask them why I
couldn't retrieve my DL itinerary on
their web site...

*sigh* Turns out the DL call-center agent decided that my last name should be spelled differently on the ticket than it was
on the DL-issued electronic voucher I was using to pay for the ticket! Somehow I think her "creative" streak doesn't help in this line of work...

)