It always surprises me how different these cars can be from build to build, and driver to driver. There's such a huge variety of suspension setups between goblins, it's hard to tell what works and what doesn't.
I set mine up with the stock DF shocks and springs (coilovers in the rear). Setup is pretty close to full soft. I added a rear sway bar from the start (the "comfort" Cobalt swaybar). Stock cobalt wheels and tires, 215 wide.
Setup as such, oversteer was default. It was fun and agile, but almost unstable. AutoX, where the speeds were lower, it was amazing. The quick directional changes at low speed made oversteer an asset. I spun it once while on the brakes, but otherwise it was a joy (and fast).
The oversteer became a HUGE liability on a big race track. Oversteer at 100mph is NOT fun at all. I spun it once on track (no damage) and had to dial back my aggression a lot to keep it from happening again. I have since gone to a staggered tire setup, but have not tested yet. I'm hoping 255's in the rear and 225's in the front will restore some balance to the handling so it isn't so eager to kill me. I'll drift my Charger 392 all day long. But a short wheelbase car like the goblin can be snappy, and does not suffer fools.