The runs are not the longest in the alpine world, thats for sure... but the lifts are everywhere and getting back up fast is not an issue. Same rules as NZ, you have to lookout for school holidays and avoid the weekends.

There is some serious steep and technical runs in Falls Creek as well as a great super pipe and other terrain parks. They also have Heli Ski options where you can get the heli over to Mt Hotham and ski there all day for $90pp (your lift passes are valid on both mountains) and they also do remote heli ski drops on virgin country for $$$. A cheaper option is Kat Skiing where they take you out back country on the snow Kats and ski doos to find virgin slopes all for much less than the heli.