Yes, flying with a group is really fun - in fact, the community is the reason I stuck with FSEconomy despite its age and it being run by a bunch of dinosaurs who really, really dislike change. Despite it being less flashy and having less features than Neofly or other career MMOs, there's so many ways to interact with the community that other addons simply do not. There's cottage industries for financing or leasing planes, airport modding, livery creation etc that I simply cannot find anywhere else.
And yes, AUSPAC Air is always open. Search for the group on the FSE Forums or Discord if you ever decide to give FSE a try!
This works frighteningly well - guess I know what I'll be listening to as I play msfs today!