i've seen a few in the wild as well. haven't touched them or sold wheels to their owners though. i'm not 100% on the looks of the rear end, looks very commodore, my missus was looking at buying one so maybe i'll get to drive one.
i imagine the aftermarket will absolutely take off. the trd gear looks quite nice too. cusco has an lsd and suspension parts out already. i would be very interested in factory turbo options.