Well now that I finally read the book as well, I have to say that I rather liked it, at least liked it more than any of the DC stuff (except maybe the Starfire series
) they put out in the last decade. Of course, I did not manage to avoid the spoilers for so long, still I thought it was every entertaining and the art was done by the best artists available in the DC roster.
Comics are a graphic medium, after all, so you have to wonder why they hurt their franchise so much year after year by putting rather abysmal artists on their books... the Legion did hurt from mediocre art in their last incarnation as well.
As for the flight ring, I liked that cameo and do hope for the best. Johns certainly is a master in making a real story out of editorial decisions of the past, like he did way back with GL Rebirth reintroducing Hal Jordan. I think that the "ten years stolen" idea is really not bad, giving the whole event a kind of meta experience that I can appreciate. If they would manage to somehow make sense out of the Legion continuity conundrum in a similar way, I would be quite happy. I did never understand why Levitz did rather add to the confusion in his last run instead of giving fans some kind of closure. That did neither attract new fans nor satisfy the old ones...