Netjets:
Upgrade: I was hired in 2006 and am still 200 spots away from upgrading. That being said, during that time period there were hiring freezes, a shrinking pilot group, and furloughs so I would hope that someone coming on property now would need to wait as long. Currently though, upgrade times are 13 - 14 years.
Pay: I think that the numbers on APC may be a little old but within $5,000 or $6,000 from our current pay scales. I've also heard that you add 10% for overtime, etc. To get at actual number. When looking at the pay for each schedule, I'm pretty sure a new hire can hold any schedule except perhaps the 52 day (the base schedule is 7 on 7 off. The numbers with the other schedules refer to how many days you work over a 4 month time period).
Aircraft: Recently new hires have been going to the Phenom 300, or a Citation.
Good luck with your choice.