Wagyu Steak Dinners in Brisbane?
Also Kingsleys steakhouse further around from ChaChaChar. On the river with a lovely view, so walking there is nice too, especially at night Had a great wagyu there for $55 ish. And though like Cha Cha Char its full of suits, the service was much less standoffish. (remember to order sides)
If you wanted to try a bustling pub(tavern) I can recommend 'The Normandy Hotel' just on the outskirts of the CBD, and also ditto Breakfast Creek Wharf Hotel. Many good steaks to be had there. Also 'the pineapple' Out of town to the west I can recommend the Samford Hotel, but its more of a day trip idea.
Many restaurants will have it on the menu too, if you dont want to go 'steakhouse',just call.
You will also find Wagyu on the menu at many Japanese restaurants