We live around the area, and know better not to go to them unless is absolutely an emergency. Unfortunately our cat and dogs often decide to fall critically ill on Sunday nights. On one occasion, our dog cut his foot when out walking, the vet charged us $350, just to put some bandage around the wound (didn't even clean the wound). That's is usually tolerable, because we have pet insurance, so the expensive bills are often partially covered by the insurance.
One thing the Gungahlin Vet/emergency hospital really let us down is how they treat our cat. He had a heart failure due to HCM and his lung was filling up with liquid. The vet gave him meds to clear the liquid in the hospital. But when they discharged our cat, they refused to prescribe the medication to continue drain the liquid unless we do an ultrasound and CT and consult with their specialist. So we came home with a still really sick cat with no medication who is continuing drawn slowly.
We saw our cat suffering and booked an emergency appointment with their cat hospital under their recommendations in the hope of starting a treatment asap. The so-called specialist ignored all our cats vet history, symptoms and went ahead with procedures which put so much more stress on cat's heart which lead to a complete organ failure. And the best part is they turn around slap us with a 4500 dollars bill, including the charge of the suppose CT and ultrasound scan, which I am sure they didn't even performance given the amount of time he was in with the specialist. They did send us some flowers afterwards tho, which are the most expensive flowers I ever see.
So in short, Gungahlin Vet killed my cat. I would give them negative score if I can.

Approximate cost: $4500