The world is a magnificent place, and if want to see as many cities as you can during slip times, it’s probably best to go overseas as Qantas isn’t the job for you. The route network isn’t all that big, and never will be. If the actual flying stuff isn't that important to you, and you can live with going to London, Rome, or LA multiple times over a year, with the promise that home is really home, it may be a great fit. The conditions are good (even for new SO’s), and for me anyway, you don’t have to live with the fear that when the next recession hits, you are turfed out of the country for being a ”foreigner”. That probably won’t happen to those that choose overseas, and I wish them the best of Luck. I’m with dre though, that atlas gig looks far too much like hard work.
QF is still the best job in Australia, and I’d hesitate to reject a job offer, as I’m sure it only comes once, and eventually most will want to come home. You’re probably better off not applying at all until that day comes, if it comes at all.