Canberra is home to three trampoline 'warehouses'. Two 'Flip Outs' and a Skyzone. There's not really much to choose between them. Skyzone is probably a bit more 'polished' but they're essentially huge warehouses filled with trampolines and staffed by 18 year olds.
The kids love their trips there and I guess they are perfect for kids who are full of energy and bounce. Skyzone is a bit more regimented on time allotted to jump, whereas Flip Out is a bit more easy going (I think we paid for an hour and they jumped for two). Here's some pictures.