Some facts, observations, and estimations for those contemplating applying...
I started in spring of 2015 at around #850 on the list. We now have almost 1150 total, so that's a net growth of about 150/year. I expect we will grow at a similar rate going forward despite what they advertise. The trend is to acquire two new airplanes and send an old one back.
I was told a two year upgrade, but it will be at least 3.5 years from hire date before that option reaches me. (Not complaining, just giving perspective here). For new guys coming on now, I estimate the upgrade taking a solid 5 years as a best case scenario.
I find it much more likely we will hit an economic downturn before you reach that 5 year mark. It's been 6 years since we have seen a market correction of greater than 10%... something to consider. Also understand that a strike sounds pretty immanent if there isn't a contract by September. The soup is starting to boil.
That said, F9 is a much better lifestyle than cargo or a regional- more hard time off, generally more control of when that time off occurs, and usually pretty great people. Our training department is wonderful. Our pay is comparably obscenely low, but that will resolve itself in time if you look long term.
We have had many guys get hired from here to the legacies (two from my class) if that's your aim. And if you just can't get hired elsewhere, or have some failures or a DUI, it's not a bad place to be.
I certainly don't want to deter any good guys out there from applying, and I'm always available for a PM to help anyone out. But I don't think I would really recommend the job to a friend at present. There are just so many better opportunities out there.