Re the age limit, best check with ASA direct, but I'm pretty sure some in this thread
http://www.pprune.org/atc-issues/311...sting-132.html were over 40 and accepted. (Are age limits legal anymore?)
As for staffing levels, some groups are now complaining about
not getting overtime.
Overall though, I'd pretty much agree with what flower said (and I like a good ASA bash/whinge more than most). I think most of the things that are/were/perceived/actually wrong with ASA aren't unique, and just the way a lot of workplaces are these days (and you've probably already experienced), but the job itself is good.
The only thing I would add is it is shift work, so you will end up working more Christmas days, new years, birthdays, family functions etc than not.