They are a more modern design but don’t have the integrated autopilot of the G1000 which is very nice. As an upgrade however I think G500/600 are excellent.
It’s a shame that the G3000 is not widespread. It’s been out for years and shares the platform with the GTN devices. When Socata/Daher released the new TBM900, the biggest disappointment was that it still comes with the stone aged G1000. There is so little competition and such a small market that airframe vendors don’t feel the need to upgrade.
The new M600 PA46 (upgraded Meridian) has the G3000.