Ha ha ha, oh yes. That line about Azula was all kinds of perfect, and that whole scene with Zuko's reconciliation was very well done all around. I loved Iroh's obvious relish about re-opening his tea shop after the whole thing was over. :D

I just want Ursa to be alive, somewhere, and imagine her meeting Zuko several years later. That's a very nice image.

I didn't mind the loose ends at all, mainly because the series' internal continuity held together so well. I loved that one shot characters suddenly reappeared many episodes later because the other characters remembered them, not because it served the plot.