I don't care who the cabin crew are, or their ages, or what they look like. Do they treat me with a modicum of respect and do their jobs ? That's all that matters.
The app is fantastic, and the gold standard for airline apps IMHO.
The J cabins are great on international flights.......all NA carriers have crap J seating within the US and Canada.
Lounges are great and the recent renos made a difference for me.