"I upgraded in 6 months, I've been here for 9 years" Wait, so your "quick upgrade" came because you replaced TSA pilots out of seniority. Got it.
For anyone looking at Gojets, just keep in mind that the new hire bonus is a one time shot. Endeavor pays all the longevity years, $22K/year more. That is a around a $40,000-$50,000 difference in your first 3 years.
Now that they are hiring street captains, that also means anyone going there as a first officer will see longer upgrades since junior pilots to them will be upgrading over them.
Also keep in mind that Gojets was formed to subvert the TSA pilots in negotiating reasonable rates on 70 seat aircraft. If you think you will see a good contract and work rules there, you most likely will not. Many who have gone before you have learned the hard way.