I have recently grabbed a ZB the 2lt Turbo version, and it is the smoothest driving commodore I have driven. I have had VR, VS, VT, VY and VE previously. The FWD is a little different but used to it now, otherwise it has been a nice car, and other models have AWD and 6 cylinders, so there are options in your preference and budget.
I have had an aircon leak trying to solve under warranty for a few months, otherwise no faults with the car. You get used to the button press if you weren't keen on disabling autostartstop permanently.
The 4 cylinder rego is nice for me, but then having to use 95ron fuel adds a little more each fill (I always used 95 or 98 previously anyway)
Around town the VE (3lt v6) had the same fuel economy as this ZB, but highway driving the ZB (4cyl) uses hardly anything! Im sure other owners could chime in about fuel use if that influences your purchasing decision.