I just flew to HNL in Delta F.
All I can say is lower your expectations and you'll be fine. The seating is marginally better than economy. Yes, there is AVOD. The level of service is a far cry even from economy to Honolulu ten to fifteen years ago. This is not a knock on the wonderful, competent FAs. The single meal is so so. Don't expect any prelanding snack. The Sun chips and cheese crackars flow freely. Don't expect Mai Tais.
OK, so how to make it special. I mean, it's your honeymoon! If you're coming from a hotel have them put up a picnic basket or a special meal on the fly for you. Forget any comestibles offered on board. You will be the envy of the F compartment.
Do preorder a lei greeting for when you land. I'm sure you'll find a source through the internet. Forget the carnation lei; it's your honeymoon. Ask them what's special in leis. Make sure it's something fragrant and wonderful.
Oh, and congratulations!
Jim