The 22:05 departure time hits a sweet spot for the lounges at AUH so is a very good flight choice. Am glad that you found the service to be so good, as mentioned in a few places here the Dreamliner crews are generally a cut above the rest.
If you are thinking of the upgrade on the way back, make sure if a window to sit away from the sun (that window get VERY hot) or even better sit in the middle as the centre seats are wider and not angled
Happy flying !