|Meet Chicken Brood|
The image was rendered in about 25 minute with my Core 2 duo 4GB laptop. I'd say it's great and probably will use more instancing in the future for massive scenes. The model was the chicken from Modo, shaded it in Houdini. And it's easy to setup instancing and do custom attributes to alter the way the instancing works. Check Mantra Rendering for more info on instancing showcase.